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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
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EC number: 266-417-7 | CAS number: 66587-56-2
- 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
- Value:
- 220 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 9
- Modified dose descriptor starting point:
- NOAEC
Acute/short term exposure
- Value:
- 220 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 9
- Modified dose descriptor starting point:
- NOAEC
Local effects
Acute/short term exposure
DNEL related information
Workers - Hazard via dermal route
Systemic effects
Long term exposure
- Value:
- 125 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 9
- Modified dose descriptor starting point:
- NOAEL
Acute/short term exposure
- Value:
- 125 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 9
- Modified dose descriptor starting point:
- NOAEL
Local effects
Long term exposure
- Most sensitive endpoint:
- skin irritation/corrosion
Acute/short term exposure
- Most sensitive endpoint:
- skin irritation/corrosion
Workers - Hazard for the eyes
Additional information - workers
Chronic and sub-chronic toxicity studies have shown that long chain alcohols (LCA) are of low toxicity. Furthermore, combined repeated-dose studies with developmental endpoints, as well as reproductive and developmental studies showed no effects at the highest dose tested.
Rather than having separate values for the three endpoints, one endpoint “systemic effects” has been used instead. Since the NOAELs do not vary greatly across the category, one key study has been chosen as being representative of the whole category.
C6, Hexanol has been chosen as the category representative because shorter chain molecules are usually regarded as more toxic when compared to structural analogues with longer carbon chain lengths. The 13-week repeat dose study on 1-hexanol by (Sc. Assoc. 1966) has been used as the key study for deriving the Indicative Human No Effect Level (IHNEL) for LCA category. This study reported a NOAEL of 1127 mg/kg (bw).
In some cases the CAS and chemical identity stated refer to SDA nomenclature for this substance. in REACH substance identification it is necessary to be more specific as to the chain lengths present. Full details may be
found in the CSR.General Population - Hazard via inhalation route
Systemic effects
Long term exposure
- Value:
- 65 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 15
- Modified dose descriptor starting point:
- NOAEC
Acute/short term exposure
- Value:
- 65 mg/m³
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 15
- Modified dose descriptor starting point:
- NOAEC
Local effects
Acute/short term exposure
DNEL related information
General Population - Hazard via dermal route
Systemic effects
Long term exposure
- Value:
- 75 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 15
- Modified dose descriptor starting point:
- NOAEL
Acute/short term exposure
- Value:
- 75 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 15
- Modified dose descriptor starting point:
- NOAEL
Local effects
Long term exposure
- Most sensitive endpoint:
- skin irritation/corrosion
Acute/short term exposure
- Most sensitive endpoint:
- skin irritation/corrosion
General Population - Hazard via oral route
Systemic effects
Long term exposure
- Value:
- 75 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 15
- Modified dose descriptor starting point:
- NOAEL
Acute/short term exposure
- Value:
- 75 mg/kg bw/day
- Most sensitive endpoint:
- repeated dose toxicity
DNEL related information
- Overall assessment factor (AF):
- 15
- Modified dose descriptor starting point:
- NOAEL
General Population - Hazard for the eyes
Additional information - General Population
Chronic and sub-chronic toxicity studies have shown that long chain alcohols (LCA) are of low toxicity. Furthermore, combined repeated-dose studies with developmental endpoints, as well as reproductive and developmental studies showed no effects at the highest dose tested.
Rather than having separate values for the three endpoints, one endpoint “systemic effects” has been used instead. Since the NOAELs do not vary greatly across the category, one key study has been chosen as being representative of the whole category.
C6, Hexanol has been chosen as the category representative because shorter chain molecules are usually regarded as more toxic when compared to structural analogues with longer carbon chain lengths. The 13-week repeat dose study on 1-hexanol by (Sc. Assoc. 1966) has been used as the key study for deriving the Indicative Human No Effect Level (IHNEL) for LCA category. This study reported a NOAEL of 1127 mg/kg (bw).
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.