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Diss Factsheets
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EC number: 266-928-5 | CAS number: 67701-03-5 This substance is identified by SDA Substance Name: C16-C18 alkyl carboxylic acid and SDA Reporting Number: 19-005-00.
- 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
Skin sensitisation
Administrative data
- Endpoint:
- skin sensitisation: in vivo (non-LLNA)
- Type of information:
- migrated information: read-across based on grouping of substances (category approach)
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Basic data given
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 979
- Report date:
- 1979
Materials and methods
- Principles of method if other than guideline:
- The experiment was conducted according to the method of B. Magnusson and M. Kligman [The Journal of Investigative Dermatology, Volume 52, No. 3 and Allergic Contact Dermatitis in the Guinea Pig., Charles C. Thomas Publisher, Springfield, Illinois, 1970, USA].
- GLP compliance:
- not specified
- Type of study:
- guinea pig maximisation test
- Justification for non-LLNA method:
- The test was done before LLNA as first-choice method for in vivo testing was set into force.
Test material
- Reference substance name:
- Lauric acid
- EC Number:
- 205-582-1
- EC Name:
- Lauric acid
- Cas Number:
- 143-07-7
- Molecular formula:
- C12H24O2
- IUPAC Name:
- dodecanoic acid
Constituent 1
In vivo test system
Test animals
- Species:
- guinea pig
- Strain:
- other: Pirbright-white
- Sex:
- not specified
- Details on test animals and environmental conditions:
- TEST ANIMALS
- Weight at study initiation: mean 374 g (test group), 389 g (control group)
Study design: in vivo (non-LLNA)
Inductionopen allclose all
- Route:
- intradermal
- Vehicle:
- other: ethanol
- Concentration / amount:
- Challenge: 2.5%
Challengeopen allclose all
- Route:
- epicutaneous, occlusive
- Vehicle:
- other: ethanol
- Concentration / amount:
- Challenge: 2.5%
- No. of animals per dose:
- 20
- Details on study design:
- CHALLENGE EXPOSURE
- Exposure period: 24 hours
- Test groups: 20 animals
- Control group: 10 animals
- Concentrations: 2.5%
- Evaluation (hr after patch removal): 24 and 48 hours - Challenge controls:
- 10 animals
- Positive control substance(s):
- not specified
Results and discussion
In vivo (non-LLNA)
Resultsopen allclose all
- Reading:
- 1st reading
- Hours after challenge:
- 24
- Group:
- test chemical
- Dose level:
- 2.5%
- No. with + reactions:
- 0
- Total no. in group:
- 20
- Clinical observations:
- no effects
- Remarks on result:
- other: Reading: 1st reading. . Hours after challenge: 24.0. Group: test group. Dose level: 2.5%. No with. + reactions: 0.0. Total no. in groups: 20.0. Clinical observations: no effects.
- Reading:
- 2nd reading
- Hours after challenge:
- 48
- Group:
- test chemical
- Dose level:
- 2.5%
- No. with + reactions:
- 0
- Total no. in group:
- 20
- Clinical observations:
- no effects
- Remarks on result:
- other: Reading: 2nd reading. . Hours after challenge: 48.0. Group: test group. Dose level: 2.5%. No with. + reactions: 0.0. Total no. in groups: 20.0. Clinical observations: no effects.
- Group:
- positive control
- Remarks on result:
- not measured/tested
- Group:
- negative control
- Remarks on result:
- not measured/tested
Any other information on results incl. tables
All test animals and controls showed no skin effects (0%). Lauric acid is not sensitizing in guinea pigs.
Applicant's summary and conclusion
- Interpretation of results:
- other: CLP/EU GHS criteria not met, no classification required according to Regulation (EC) No. 1272/2008
- Conclusions:
- CLP: not classified
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