Registration Dossier
Registration Dossier
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 701-177-3 | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data

Toxicological Summary
- Administrative data
- Workers - Hazard via inhalation route
- Workers - Hazard via dermal route
- Workers - Hazard for the eyes
- Additional information - workers
- General Population - Hazard via inhalation route
- General Population - Hazard via dermal route
- General Population - Hazard via oral route
- General Population - Hazard for the eyes
- Additional information - General Population
Administrative data
Workers - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 0.8 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- By inhalation
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 75
- Dose descriptor starting point:
- NOAEC
- Value:
- 60 mg/m³
- AF for dose response relationship:
- 1
- Justification:
- NOAEC as determined in study is taken
- AF for differences in duration of exposure:
- 6
- Justification:
- Transformation subacute to chronic
- AF for interspecies differences (allometric scaling):
- 1
- Justification:
- Not applicable for inhalation toxicity
- AF for other interspecies differences:
- 2.5
- Justification:
- Default value
- AF for intraspecies differences:
- 5
- Justification:
- Default value for worker
- AF for the quality of the whole database:
- 1
- AF for remaining uncertainties:
- 1
Acute/short term exposure
- Hazard assessment conclusion:
- low hazard (no threshold derived)
- Most sensitive endpoint:
- acute toxicity
- Route of original study:
- By inhalation
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- medium hazard (no threshold derived)
- Most sensitive endpoint:
- acute toxicity
Acute/short term exposure
- Hazard assessment conclusion:
- medium hazard (no threshold derived)
- Most sensitive endpoint:
- acute toxicity
DNEL related information
Workers - Hazard via dermal route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 4.2 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 100
- Dose descriptor starting point:
- NOAEL
- Value:
- 300 mg/kg bw/day
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 420 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
Dermal NOAEL=NOAELoral*(ABSoral-rat/ABSdermal-human) = 300 mg/kg bw/day*(1/1)*(7 days/week exposure rats/5days/week exposure worker) = 420 mg/kg bw/day.
ABSoral-rat=oral absorption rate in rats
ABSdermal-human=dermal absorption rate in humans
Additional factor of 7/5 included to account for differences in exposure between rats in experimental study (exposure 7 days/week) versus workers during typical work week (exposure 5 days/week).
- AF for dose response relationship:
- 1
- Justification:
- NOAEL as determined in study is taken
- AF for differences in duration of exposure:
- 2
- Justification:
- DNEL is based on an oral sub-chronic (90-days) toxicity study.
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- DNEL is based on a study in rat.
- AF for other interspecies differences:
- 2.5
- Justification:
- Default value
- AF for intraspecies differences:
- 5
- Justification:
- Default value for worker
- AF for the quality of the whole database:
- 1
- AF for remaining uncertainties:
- 1
Acute/short term exposure
- Hazard assessment conclusion:
- low hazard (no threshold derived)
- Most sensitive endpoint:
- skin irritation/corrosion
- Route of original study:
- Dermal
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- low hazard (no threshold derived)
- Most sensitive endpoint:
- skin irritation/corrosion
Acute/short term exposure
- Hazard assessment conclusion:
- low hazard (no threshold derived)
- Most sensitive endpoint:
- skin irritation/corrosion
Workers - Hazard for the eyes
Local effects
- Hazard assessment conclusion:
- medium hazard (no threshold derived)
Additional information - workers
Inhalation
The long-term systemic inhalation DNEL has been derived from an inhalation NOAEC of 60 mg/m³ air derived from a subacute (28-days) study in rats. Route-to-route extrapolation and allometric scaling was hence not necessary in the derivation of the DNEL. Differences in the duration of the exposure have been accounted for with an assessment factor of 6 and only an assessment factor of 2.5 has been included to account for remaining uncertainties between species. An additional assessment factor of 5 has been included to account for intraspecies differences among workers. In conclusion, a DNEL of 0.8 mg/m³ air has been determined.
No acute systemic inhalation DNEL has been derived. The substance is classified as Acute Tox 4 for inhalation (H332), irritating to the skin (Skin Irrit. 2, H315) and causing serious damage to the eyes (Eye Damage 1, H318), which also comprise mucous membranes. According to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Part E: Risk Characterisation, TableE.3-1” the hazard via the inhalation route has to be considered as low. However, since the effects observed in the acute inhalation studies after 4 hours exposure, are considered as secondary effects due to the irritating characteristics of the substance the derivation of an acute DNEL is not recommended. According to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Chapter R.8: Characterisation of dose [concentration]-response for human health” time scaling is not considered as appropriate when the toxic effect is mainly driven by exposure concentration, as is the case for irritation. However, the substance is classified as acutely harmful by inhalation and is irritating to the respiratory tract (although it is not classified accordingly due to lack of study data) as demonstrated by its significant self-warning ability known from handling experience. Due to those well-known irritating characteristics general Risk Management Measures and Operational Conditions (RMMs/OCs) are implemented, and the corresponding use of Personal Protection Equipment (PPE) including appropriate respiratory protection is mandatory. In conclusion, the risk of peak exposures of workers by inhalation is considered to be sufficiently controlled.
Local DNELs for the inhalation route are not derived in compliance with “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Chapter R.8: Characterisation of dose [concentration]-response for human health”. The neat substance is regarded as acutely harmful and is classified as Acute Tox 4 for the inhalation route (H332), as irritating to the skin (Skin Irrit. 2, H315) and as causing serious damage to the eyes (Eye Damage 1, H318), which also comprise mucous membranes in form of the conjunctivae. Therefore, a comparable effect on the mucous membranes of the respiratory tract can be assumed and is confirmed by the well-known irritation of the respiratory tract reported from handling experience. According to ECHA Guidance on Information Requirements and Chemical Safety Assessment – Part E: Risk Characterisation, Table E.3-1” the local hazard by respiratory irritation would have to be considered as low, but due to the lack of route specific data and the demonstrated induction of serious damage to the eyes (and the corresponding classification) the moderate hazard band has been chosen for the local endpoints representing a conservative worst case approach. Due to the well-known irritating characteristics and the classification as Acute Tox 4 for the inhalation route (H332) general RMMs and OCs are implemented, and the corresponding use of Personal Protective Equipment (PPE) including appropriate respiratory protection is mandatory. In conclusion, the risk of local effects, both long-term and acute, on the respiratory tract of workers is considered to be sufficiently controlled.
Dermal
The long-term systemic dermal DNEL has been derived from the oral NOAEL of 300 mg/kg bw/day derived from the sub-chronic (90-days) study in rats. Route to route extrapolation has been done assuming equal rates for the oral absorption of the rat and the dermal absorption of humans. In a worst case approach the oral absorption rate of the rat is not assumed to be higher than the dermal absorption rate of humans, although a study demonstrating more than 80% oral absorption in the rat is available, and complete absorption is anticipated by the authors (Bureau of Biological Research, 1994), while complete absorption via the human skin is unlikely. Furthermore, a correction factor of 7/5 has been included to account for the differences in exposure between rats in an experimental study (exposure 7 days/week) and workers during a typical work week (exposure 5 days/week). Hence, as dose descriptor starting point for DNEL derivation a NOAELcorr of 420 mg/kg bw/day has been used, followed by allometric scaling for interspecies differences between rats and humans, inclusion of an additional factor of 2.5 for other interspecies differences and an assessment factor of 5 to account for intraspecies differences among the workers. In conclusion, a DNEL of 4.2 mg/kg bw/day has been derived.
No acute systemic dermal DNEL has been derived. According to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Chapter R.8: Characterisation of dose [concentration]-response for human health – Appendix R.8-8” a DNEL for acute toxicity should be derived if an acute toxicity hazard has been identified and if there is a potential for high peak exposures. High peak exposures are usually assessed for the inhalation route only. Although peak exposures in theory may also occur for the dermal route they are not normally assessed, so the establishment of acute toxicity DNELs for the dermal route appears superfluous. Short-term exposures should normally be assessed using the long-term DNELs. However, no data on toxicity via the dermal route is available, and DNELs cannot be derived from irritation studies; hence, there are no results to derive an acute DNEL. The neat substance and the concentration contained in the industrially marketed formulation are classified as irritating to the skin (Skin Irrit. 2, H315). According to “ECHA Guidance on Information requirements and Chemical Safety Assessment – Part E: Risk Characterisation, Table E.3-1” the hazard via the dermal route has been considered as low. Due to the well-known irritant characteristics general RMMs and OCs are implemented, and the corresponding use of Personal Protective Equipment (PPE) including appropriate gloves and skin coverage with appropriate barrier material is mandatory. In conclusion, the risk of peak exposures of workers via the dermal route is considered to be sufficiently controlled although no DNELs can be derived from irritation studies.
Local DNELs for the dermal route are not derived in compliance with “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Chapter R.8: Characterisation of dose [concentration]-response for human health”. According to this guidance DNELs covering local dermal effects can only be derived if route-specific data is available. However, no data on toxicity via the dermal route is available, and DNELs cannot be derived from irritation studies; hence, there are no results to derive a local DNEL. The neat substance and the concentration contained in the industrially marketed formulation are classified as irritating to the skin (Skin Irrit. 2, H315), so the hazard for the dermal route has been considered as low according to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Part E: Risk Characterisation, Table E.3-1”. Due to the well-known irritating characteristics of the substance general RMMs and OCs are implemented, and the corresponding use of Personal Protective Equipment (PPE) including appropriate gloves and skin coverage with suitable barrier material is mandatory. In conclusion, the risk of local effects, both long-term and acute, on the skin of workers is considered to be sufficiently controlled, although no DNELs can be derived from irritation studies.
Eyes
The neat substance is anticipated to cause serious damage to the eyes, resulting in the corresponding classification Eye Damage 1 (H318). According to "ECHA Guidance on Information Requirements and Chemical Safety Assessment - Part E: Risk Characterisation, Table E.3-1" the substance is considered to exert a moderate hazard for the eyes. Due to the well-known irritating characteristics of the substance general RMMs and OCs are implemented, and the corresponding use of Personal Protective Equipment (PPE) including appropriate eye protection in form of chemical goggles is mandatory. In conclusion, the risk for effects on the eyes of workers is considered to be sufficiently controlled.
General Population - Hazard via inhalation route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 0.4 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- By inhalation
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 150
- Dose descriptor starting point:
- NOAEC
- Value:
- 60 mg/m³
- AF for dose response relationship:
- 1
- Justification:
- NOAEC as determined in study is taken
- AF for differences in duration of exposure:
- 6
- Justification:
- Transformation subacute to chronic
- AF for interspecies differences (allometric scaling):
- 1
- Justification:
- Not applicable for inhalation toxicity
- AF for other interspecies differences:
- 2.5
- Justification:
- Default value
- AF for intraspecies differences:
- 10
- Justification:
- Default value for general population
- AF for the quality of the whole database:
- 1
- AF for remaining uncertainties:
- 1
Acute/short term exposure
- Hazard assessment conclusion:
- low hazard (no threshold derived)
- Most sensitive endpoint:
- acute toxicity
- Route of original study:
- By inhalation
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- low hazard (no threshold derived)
- Most sensitive endpoint:
- acute toxicity
Acute/short term exposure
- Hazard assessment conclusion:
- low hazard (no threshold derived)
- Most sensitive endpoint:
- acute toxicity
DNEL related information
General Population - Hazard via dermal route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 1.5 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 200
- Dose descriptor starting point:
- NOAEL
- Value:
- 300 mg/kg bw/day
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 300 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
Dermal NOAEL=NOAELoral*(ABSoral-rat/ABSdermal-human) = 300 mg/kg bw/day*(1/1) = 300 mg/kg bw/day
ABSoral-rat=oral absorption rate in rats
ABSdermal-human=dermal absorption rate in humans
- AF for dose response relationship:
- 1
- AF for differences in duration of exposure:
- 2
- Justification:
- DNEL is based on an oral sub-chronic (90-days) toxicity study.
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- DNEL is based on study in rat.
- AF for other interspecies differences:
- 2.5
- Justification:
- Default value
- AF for intraspecies differences:
- 10
- Justification:
- Default value for general population
- AF for the quality of the whole database:
- 1
- AF for remaining uncertainties:
- 1
Acute/short term exposure
- Hazard assessment conclusion:
- low hazard (no threshold derived)
- Most sensitive endpoint:
- skin irritation/corrosion
- Route of original study:
- Dermal
DNEL related information
Local effects
Long term exposure
- Hazard assessment conclusion:
- low hazard (no threshold derived)
- Most sensitive endpoint:
- skin irritation/corrosion
Acute/short term exposure
- Hazard assessment conclusion:
- low hazard (no threshold derived)
- Most sensitive endpoint:
- skin irritation/corrosion
General Population - Hazard via oral route
Systemic effects
Long term exposure
- Hazard assessment conclusion:
- DNEL (Derived No Effect Level)
- Value:
- 1.5 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
- Route of original study:
- Oral
DNEL related information
- DNEL derivation method:
- ECHA REACH Guidance
- Overall assessment factor (AF):
- 200
- Dose descriptor starting point:
- NOAEL
- Value:
- 300 mg/kg bw/day
- Modified dose descriptor starting point:
- NOAEL
- Value:
- 300 mg/kg bw/day
- Explanation for the modification of the dose descriptor starting point:
No route-to-route extrapolation required, NOAEL derived from oral study. Equal oral absorption is anticipated for rats and humans.
- AF for dose response relationship:
- 1
- AF for differences in duration of exposure:
- 2
- Justification:
- DNEL is based on an oral sub-chronic (90-days) toxicity study.
- AF for interspecies differences (allometric scaling):
- 4
- Justification:
- DNEL is based on study in rat.
- AF for other interspecies differences:
- 2.5
- Justification:
- Default value
- AF for intraspecies differences:
- 10
- Justification:
- Default value for general population.
- AF for the quality of the whole database:
- 1
- AF for remaining uncertainties:
- 1
Acute/short term exposure
- Hazard assessment conclusion:
- no hazard identified
- Most sensitive endpoint:
- acute toxicity
- Route of original study:
- Oral
DNEL related information
General Population - Hazard for the eyes
Local effects
- Hazard assessment conclusion:
- medium hazard (no threshold derived)
Additional information - General Population
Inhalation
The long-term systemic inhalation DNEL has been derived from an inhalation NOAECL of 60 mg/m³ air derived from a subacute (28-days) study in rats. Route-to-route extrapolation and allometric scaling was hence not necessary in the derivation of the DNEL. Differences in the duration of the exposure have been accounted for with an assessment factor of 6 and only an assessment factor of 2.5 has been included to account for remaining uncertainties between species. An additional assessment factor of 10 has been included to account for intraspecies differences in the general population. In conclusion, a DNEL of 0.4 mg/m³ air has been determined.
No acute systemic inhalation DNEL has been derived. The substance is classified as Acute Tox 4 for inhalation, irritating to the skin (Skin Irrit. 2) and causing serious damage to the eyes (Eye Dam. 1), which also comprise mucous membranes. According to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Part E: Risk Characterisation, TableE.3-1” the hazard via the inhalation route has to be considered as low. However, since the effects observed in the acute inhalation studies after 4 hours exposure are considered as secondary effects due to the irritating characteristics of the substance the derivation of an acute DNEL is not recommended. According to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Chapter R.8: Characterisation of dose [concentration]-response for human health” time scaling is not considered as appropriate when the toxic effect is mainly driven by exposure concentration, as is the case for irritation. However, the neat substance is classified as acutely harmful by inhalation and is irritating to the respiratory tract (although it is not classified accordingly due to lack of study data) as demonstrated by its significant self-warning ability known from handling experience. The risk for workers in industrial and professional settings is controlled by the implementation of appropriate RMMs and OCs; however, since compliance with RMMs and OCs could not be controlled for the general population, and the use of Personal Protective Equipment (PPE) could not be assumed, the risk for the general population is controlled by limiting the concentration of the substance in consumer products to levels resulting in no hazard or low hazard via the respective routes according to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Part E: Risk Characterisation, Table E.3-1”, including appropriate labelling, and by establishing appropriate use profiles. In conclusion, the risk of peak exposures of consumers by inhalation is considered to be adequately controlled.
Local DNELs for the inhalation route are not derived in compliance with “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Chapter R.8: Characterisation of dose [concentration]-response for human health”. The neat substance has to be regarded as acutely harmful and is classified as Acute Tox 2 for the inhalation route, as irritating to the skin (Skin Irrit. 2) and as causing serious damage to the eyes (Eye Dam. 1), which also comprise mucous membranes in form of the conjunctivae. Therefore, a comparable effect on the mucous membranes of the respiratory tract can be assumed and is confirmed by the well-known irritation of the respiratory tract reported from handling experience. According to ECHA Guidance on Information Requirements and Chemical Safety Assessment – Part E: Risk Characterisation, Table E.3-1” the local hazard by respiratory irritation would have to be considered as low, but due to the lack of corresponding data and the demonstrated induction of serious damage to the eyes (including the corresponding classification) the moderate hazard band has been chosen for the local endpoints representing a conservative worst case approach. The risk for workers in industrial and professional settings is controlled by the implementation of appropriate RMMs and OCs; however, since compliance with RMMs and OCs could not be controlled for the general population, and the use of Personal Protective Equipment (PPE) could not be assumed, the risk for the general population is controlled by limiting the concentration of the substance in consumer products to levels resulting in no hazard or low hazard via the respective routes according to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Part E: Risk Characterisation, Table E.3-1”, including appropriate labelling, and by establishing appropriate use profiles. In conclusion, the risk of local effects, both long-term and acute, on the respiratory tract of consumers is considered to be adequately controlled.
Dermal
The long-term systemic dermal DNEL has been derived from the oral NOAEL of 300 mg/kg bw/day derived from the sub-chronic (90-days) study in rats. Route to route extrapolation has been done assuming equal rates for the oral absorption of the rat and the dermal absorption of humans. In a worst case approach the oral absorption rate of the rat is not assumed to be higher than the dermal absorption rate of humans, although a study demonstrating more than 80% oral absorption in the rat is available, and complete absorption is anticipated by the authors (Bureau of Biological Research, 1994), while complete absorption via the human skin is unlikely. Hence, as dose descriptor starting point for DNEL derivation a NOAELcorr of 300 mg/kg bw/day has been used, followed by allometric scaling for interspecies differences between rats and humans, inclusion of an additional factor of 2.5 for other interspecies differences and an assessment factor of 10 to account for intraspecies differences in the general population. In conclusion, a DNEL of 1.5 mg/kg bw/day has been derived.
No acute systemic dermal DNEL has been derived. According to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Chapter R.8: Characterisation of dose [concentration]-response for human health – Appendix R.8-8” a DNEL for acute toxicity should be derived if an acute toxicity hazard has been identified and if there is a potential for high peak exposures. High peak exposures are usually assessed for the inhalation route only. Although peak exposures in theory may also occur for the dermal route they are not normally assessed, so the establishment of acute toxicity DNELs for peak exposures via the dermal route appears superfluous. Short-term exposures should normally be assessed using the long-term DNELs. However, no data on toxicity via the dermal route is available, and DNELs cannot be derived from irritation studies; hence, there are no results to derive an acute DNEL. The neat substance and the concentration contained in the industrially marketed formulation are classified as irritating to the skin (Skin Irrit. 2). According to “ECHA Guidance on Information requirements and Chemical Safety Assessment – Part E: Risk Characterisation, Table E.3-1” the hazard via the dermal route would have to be considered as low. The risk for workers in industrial and professional settings is controlled by the implementation of appropriate RMMs and OCs; however, since compliance with RMMs and OCs could not be controlled for the general population, and the use of Personal Protective Equipment (PPE) could not be assumed, the risk for the general population is controlled by limiting the concentration of the substance in consumer products to levels resulting in no hazard or low hazard via the respective routes according to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Part E: Risk Characterisation, Table E.3-1”, including appropriate labelling, and by establishing appropriate use profiles. In conclusion, the risk of peak exposures of consumers via the dermal route is considered to be adequately controlled although no DNELs can be derived from irritation studies.
Local DNELs for the dermal route are not derived in compliance with “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Chapter R.8: Characterisation of dose [concentration]-response for human health”. According to this guidance DNELs covering local dermal effects can only be derived if route-specific data is available. However, no data on toxicity via the dermal route is available, and DNELs cannot be derived from irritation studies; hence, there are no results to derive a local DNEL. The neat substance and the concentration contained in the industrially marketed formulation are classified as irritating to the skin (Skin Irrit. 2), so the hazard for the dermal route would have to be considered as low according to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Part E: Risk Characterisation, Table E.3-1”. The risk for workers in industrial and professional settings is controlled by the implementation of appropriate RMMs and OCs; however, since compliance with RMMs and OCs could not be controlled for the general population, and the use of Personal Protective Equipment (PPE) could not be assumed, the risk for the general population is controlled by limiting the concentration of the substance in consumer products to levels resulting in no hazard or low hazard via the respective routes according to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Part E: Risk Characterisation, Table E.3-1”, including appropriate labelling, and by establishing appropriate use profiles. In conclusion, the risk of local effects, both long-term and acute, on the skin of consumers is considered to be adequately controlled although no DNELs can be derived from irritation studies.
Oral
The long-term systemic oral DNEL has also been derived from the oral NOAEL of 300 mg/kg bw/day derived from the sub-chronic (90-days) study in rats. Route to route extrapolation is not required, and in a worst case approach equal oral absorption for rats and humans (absorption of 100% is assumed for the rat) has been anticipated. Hence, as dose descriptor starting point for DNEL derivation a NOAELcorr of 300 mg/kg bw/day has been used, followed by allometric scaling for interspecies differences between rats and humans, inclusion of an additional factor of 2.5 for other interspecies differences and an assessment factor of 10 to account for intraspecies differences in the general population. In conclusion, a DNEL of 1.5 mg/kg bw/day has been derived.
No acute systemic oral DNEL has been derived. According to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Chapter R.8: Characterisation of dose [concentration]-response for human health – Appendix R.8-8” a DNEL for acute toxicity should be derived if an acute toxicity hazard has been identified and if there is a potential for high peak exposures. High peak exposures are usually assessed for the inhalation route only. Although peak exposures in theory may also occur for the oral route they are not normally assessed, so the establishment of acute toxicity DNELs for peak exposures via the oral route appears superfluous. Short-term exposures should normally be assessed using the long-term DNELs. However, there are data from an acute limit test on toxicity via the oral route available. No mortalities occured and, hence, no hazard via the oral route has been identified. The substance is not classified for acute toxicity via the oral route, and the derivation of an acute DNEL is not required. In conclusion, the risk of peak exposures via the oral route is considered to be adequately controlled although no acute DNEL has been derived.
Eyes
The neat substance is anticipated to cause serious damage to the eyes, resulting in the corresponding classification Eye Damage 1. According to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Part E: Risk Characterisation, Table E.3-1” the substance is considered to exert a moderate hazard for the eyes. The risk for workers in industrial and professional settings is controlled by the implementation of appropriate RMMs and OCs; however, since compliance with RMMs and OCs could not be controlled for the general population, and the use of Personal Protective Equipment (PPE) could not be assumed, the risk for the general population is controlled by limiting the concentration of the substance in consumer products to levels resulting in no hazard or low hazard via the respective routes according to “ECHA Guidance on Information Requirements and Chemical Safety Assessment – Part E: Risk Characterisation, Table E.3-1”, including appropriate labelling, and by establishing appropriate use profiles. In conclusion, the risk of effects on the eyes of consumers is considered to be adequately controlled.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.

EU Privacy Disclaimer
This website uses cookies to ensure you get the best experience on our websites.