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EC number: 500-707-9 | CAS number: 162353-70-0
- 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
![](https://chesar.echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_toxicological-information.png)
Endpoint summary
Administrative data
Description of key information
Skin irritation (OECD 404), rabbit: not irritating (RA from CAS 147256-33-5)
Eye irritation (OECD 405), rabbit: not irritating (RA from CAS 147256-33-5)
Key value for chemical safety assessment
Skin irritation / corrosion
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed (not irritating)
Eye irritation
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed (not irritating)
Respiratory irritation
Endpoint conclusion
- Endpoint conclusion:
- no study available
Additional information
Justification for grouping of substances and read-across
There are only limited data available on skin and eye irritation of Fatty acids, C18-unsatd., dimers, reaction products with fatty acids, C14-18 and C16-18-unsatd. and propylidynemethanol (CAS 162353-70-0). In order to fulfil the standard information requirements set out in Annex VII and VIII, 8.1. and 8.2., in accordance with Annex XI, 1.5, of Regulation (EC) No 1907/2006, read-across from structurally related substances was conducted. In accordance with Article 13 (1) of Regulation (EC) No 1907/2006, "information on intrinsic properties of substances may be generated by means other than tests, provided that the conditions set out in Annex XI are met.” In particular for human toxicity, information shall be generated whenever possible by means other than vertebrate animal tests, which includes the use of information from structurally related substances (grouping or read-across). Having regard to the general rules for grouping of substances and read-across approach laid down in Annex XI, Item 1.5, of Regulation (EC) No 1907/2006 whereby substances may be predicted as similar provided that their physicochemical, toxicological and ecotoxicological properties are likely to be similar or follow a regular pattern as a result of structural similarity.
Overview of skin and eye irritation
CAS |
Chemical name |
Molecular weight [g/mol] |
Skin irritation |
Eye irritation |
162353-70-0 (a) |
Fatty acids, C18-unsatd., dimers, reaction products with fatty acids, C14-18 and C16-18-unsatd. and propylidynemethanol |
610.99 - 1209.97 |
RA: CAS 147256-33-5
|
RA: CAS 147256-33-5
|
147256-33-5 (b) |
Fatty acids, C18-unsatd., dimers, mixed esters with oleic acid and trimethylol-propane |
624.97 - 1762.80 |
Experimental result: not irritating
|
Experimental result: not irritating
|
(a) The substance subject to registration is indicated in bold font.
(b) Reference (read-across) substances are indicated in normal font.
The above mentioned substances are considered to be similar on the basis of the structural similar properties and/or activities. The available endpoint information is used to predict the same endpoints for Fatty acids, C18-unsatd., dimers, reaction products with fatty acids, C14-18 and C16-18-unsatd. and propylidynemethanol (CAS 162353-70-0). A detailed analogue approach justification is provided in the technical dossier (see IUCLID Section 13).
Discussion
No reliable data on the skin and eye irritation properties are available with Fatty acids, C18-unsatd., dimers, reaction products with fatty acids, C14-18 and C16-18-unsatd. and propylidynemethanol (CAS 162353-70-0). Therefore, read across from the structurally analogue substance Fatty acids, C18-unsatd., dimers, mixed esters with oleic acid and trimethylolpropane (CAS 147256-33-5) was applied.
Skin irritation
CAS 147256-33-5
Two studies addressing the skin irritating properties of Fatty acids, C18-unsatd., dimers, mixed esters with oleic acid and trimethylolpropane (CAS 147256-33-5) are available.
In the key skin irritation study performed according to OECD TG 404 and in compliance with GLP three male New Zealand White rabbits were exposed to 0.5 mL of the neat test material (CAS 147256-33-5) for 4 hours applied onto the clipped skin via semi-occlusive dressing (Harlan, 2012a). Skin reactions were evaluated 1, 24, 48 and 72 hours post-application. No symptoms of systemic toxicity were observed in any animal during the test period and no mortality occurred during the course of the study. Very slight erythema formation (grade 1) was noted in 1/3 animals 24 and 48 h post-application which was fully reversible within 72 h. No edema formation was observed at any animal during the course of the study. The mean value for erythema and edema were calculated to be 0.22 and 0, respectively.
In a supporting skin irritation study performed according to OECD TG 404 and in compliance with GLP three Albino rabbits of unknown gender were exposed to 0.5 mL of the neat test material (CAS 147256-33-5) for 4 hours applied onto the shaved skin via semi-occlusive dressing (Henkel, 1989). Skin reactions were evaluated 1, 24, 48 and 72 hours and 7 days post-application. No symptoms of systemic toxicity were observed in any animal during the test period and no mortality occurred during the course of the study. Very slight erythema formation (grade 1) was noted in 1/3 animals 24, 48 and 72 hours post-application but was fully reversible within 7 days. No edema formation was observed at any animal during the course of the study. The mean value for erythema and edema were calculated to be 1 and 0, respectively.
Based on the above study results and according to EU classification criteria, the test substance is considered to be not-irritating to skin.
Eye irritation
CAS 147256-33-5
Two studies addressing the eye irritating properties of Fatty acids, C18-unsatd., dimers, mixed esters with oleic acid and trimethylolpropane (CAS 147256-33-5) are available.
In the key eye irritation study with Fatty acids, C18-unsatd., dimers, mixed esters with oleic acid and trimethylolpropane (CAS 147256-33-5)performed according to OECD TG 405 and in compliance with GLP (Harlan, 2012b) 0.1 mL of the neat test material was instilled in the eye of three male New Zealand White rabbits. The eyes were examined and the changes were graded according to the Draize scoring system 1, 24, 48 and 72 hours post-application. No symptoms of systemic toxicity were observed in the animals during the test period and no mortality occurred during the course of the study. Neither iridial irritation nor corneal opacity and chemosis were observed in any animal during the course of the study. All animal showed conjunctivae irritation (grade 0.33) which was fully reversible within 48 hours.
In another supporting eye irritation study with Fatty acids, C18-unsatd., dimers, mixed esters with oleic acid and trimethylolpropane (CAS 147256-33-5) performed according to OECD TG 405 and in compliance with GLP (Henkel, 1989b) 0.1 mL of the neat test material was instilled in the eye of three Albino rabbits of unknown gender. The eyes were examined and the changes were graded according to the Draize scoring system 1, 24, 48 and 72 hours post-application. No symptoms of systemic toxicity were observed in the animals during the test period and no mortality occurred during the course of the study. Neither iridial irritation nor corneal opacity and chemosis were observed in any animal during the course of the study. One animal showed conjunctivae irritation (grade 0.33) which was fully reversible within 48 hours.
Based on the above study results and according to EU classification criteria, the test substance is considered to be not-irritating to eyes.
Justification for classification or non-classification
According to Article 13 of Regulation (EC) No. 1907/2006 "General Requirements for Generation of Information on Intrinsic Properties of substances", information on intrinsic properties of substances may be generated by means other than tests e.g. from information from structurally related substances (grouping or read-across), provided that conditions set out in Annex XI are met. Annex XI, "General rules for adaptation of this standard testing regime set out in Annexes VII to X” states that “substances whose physicochemical, toxicological and ecotoxicological properties are likely to be similar or follow a regular pattern as a result of structural similarity may be considered as a group, or ‘category’ of substances. This avoids the need to test every substance for every endpoint". Since the analogue concept is applied to Fatty acids, C18-unsatd., dimers, reaction products with fatty acids, C14-18 and C16-18-unsatd. and propylidynemethanol (CAS 162353-70-0), data will be generated from data for reference source substance(s) to avoid unnecessary animal testing. Additionally, once the analogue read-across concept is applied, substances will be classified and labelled on this basis.
Therefore, based on the analogue read-across approach, the available data on skin and eye irritation do not meet the classification criteria according to Regulation (EC) 1272/2008, and are therefore conclusive but not sufficient for classification.
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.
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