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EC number: 440-990-5 | CAS number: 230309-38-3
- 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 irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2001 - 2002
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 002
- Report date:
- 2002
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- Version / remarks:
- 17-07-1992
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
Constituent 1
- Specific details on test material used for the study:
- Identity: ISOPROPYL N-LAUROYLSARCOSINATE
Description: pale yellow liquid
Batch number: 002013
Purity: 92.9 %
Stability of test item: stable under storage conditions
Expiry date: 31-03-2003
Test animals
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- Testsystem: New Zealand White Rabbit, SPF
Rationale: Recognized by the international guidelines as the recommended test system
Source: Elevage Scientifique des Dombes, Chatillon sur Chalaronne, France
Number of animals per test: 3 (1 m / 2 f)
Age at start of treatment: 11 weeks
Acclimatization: Under laboratory conditions after health examination. Only animals without any visual signs of illness were used for the study.
Standard Laboratory Conditions: Air-conditioned with target ranges for room temperature 17-23°C, relative humidity 30-70 % and approximately 10-15 air changes per hour. Room temperature and humidity were monitored continuously and values outside of these ranges may have occasionally occurred, usually following room cleaning. These transient variations are considered not to have any influence on the study and, therefore, these data are not reported but are retained at RCC. The animals were provided with an automatically controlled light cycle of 12 hours light and 12 hours dark. Music was played during the light period.
Accommodation: Individually in stainless steel cages equipped with feed hoppers, drinking water bowls, with wood and haysticks for gnawing.
Diet: Pelleted standard Provimi Kliba 3418 rabbit maintenance diet ad libitum.
Water: Community tap water ad libitum.
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- clipped
- Vehicle:
- unchanged (no vehicle)
- Controls:
- no
- Amount / concentration applied:
- 0.5 mL
- Duration of treatment / exposure:
- 4 h
- Observation period:
- up to 10 days
- Number of animals:
- 3
- Details on study design:
- Four days before treatment, one flank was clipped with an electric clipper, exposing an area of approximately 100 cm2 (10 cm x 10 cm). The skin of the animals was examined one day before treatment, and regrown fur of all animals was again clipped. Animals with overt signs of skin injury or marked irritation which may have interfered with the interpretation of the results were not used in the test.
On the day of treatment, 0.5 mL of the test item was placed on a surgical gauze patch (ca. 4 cm x 4 cm). This gauze patch was applied to the intact skin of the clipped area. The patch was covered with a semi-occlusive dressing. The dressing was wrapped around the abdomen and anchored with tape. The duration of treatment was 4 hours. Then the dressing was removed and the skin was flushed with lukewarm tap water to clean the application site so that any reactions (erythema) were clearly visible at that time.
Examinations:
Viability/Mortality: Daily from delivery of the animals to the termination of test.
Clinical signs: Daily from delivery of the animals to the termination of test.
Body weights: At start of acclimatization, on the day of application and at termination of observation.
No necropsy was performed in the animals sacrificed at termination of observation.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0.67
- Reversibility:
- fully reversible within: 72 h
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- erythema score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 1.67
- Reversibility:
- fully reversible within: 7 d
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- erythema score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0.67
- Reversibility:
- fully reversible within: 72 h
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0
- Reversibility:
- fully reversible within: 24 h
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Reversibility:
- fully reversible within: 48 h
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0
- Reversibility:
- fully reversible within: 24 h
- Remarks on result:
- no indication of irritation
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- The test item did not induce significant or irreversible damage to the rabbit skin.
- Executive summary:
The primary skin irritation potential of the test item was investigated by topical semi-occlusive application of 0.5 mL to the intact left flank of each of three young adult New Zealand White rabbits. The duration of treatment was four hours. The scoring of skin reactions was performed 1, 24, 48 and 72 hours, as well as 7 and 10 days after removal of the dressing.
The mean score was calculated across 3 scoring times (24, 48 and 72 hours after patch removal) for each animal for erythema/eschar grades and for oedema grades, separately.
The mean erythema/eschar score of the three animals was 0.67, 1.67 and 0.67, respectively, and the mean oedema score was 0, 0.33 and 0, respectively.
The application to the rabbit skin resulted in mild, early-onset and transient signs of irritation such as erythema, oedema and swelling. These effects were reversible and were no longer evident 10 days after treatment, the end of the observation period for all animals. The test item caused no staining of the treated skin. No corrosive effects were noted on the treated skin of any animal at any measuring interval.
Thus, the test item did not induce significant or irreversible damage to the rabbit skin.
Based upon the referred classification criteria (EEC Commission Directive 93/21/EEC of April 27, 1993), ISOPROPYL N-LAUROYLSARCOSINATE is considered to be "not irritating" to rabbit skin.
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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