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EC number: 269-087-2 | CAS number: 68187-32-6
- 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:
- 3 October 1989 to 10 October 1989
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 989
- Report date:
- 1989
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- L-Glutamic acid, N-coco acyl derivs., monosodium salts
- EC Number:
- 269-087-2
- EC Name:
- L-Glutamic acid, N-coco acyl derivs., monosodium salts
- Cas Number:
- 68187-32-6
- Molecular formula:
- C17 H32 N1 O4 Na1
- IUPAC Name:
- l-Glutamic acid, N-coco acyl derivs., monosodium salts
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Age at study initiation: 12 - 16 weeks
- Weight at study initiation: 2.32 - 2.68 kg
- Housing: individually in suspended metal cages
- Diet: ad libitum
- Water: ad libitum
- Acclimation period: 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 15 - 20°C
- Humidity (%): 47 - 60%
- Air changes (per hr): 15 air changes per hour
- Photoperiod (hrs dark / hrs light): 12/12
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- clipped
- Vehicle:
- unchanged (no vehicle)
- Controls:
- other:
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.5 mL - Duration of treatment / exposure:
- 4 h
- Observation period:
- 1h, 24h, 48h, 72h
- Number of animals:
- 3
- Details on study design:
- TEST SITE
- Area of exposure: dorsal/flank area
- Type of wrap if used: elasticated corset (TUBIGRIP)
REMOVAL OF TEST SUBSTANCE
- Washing (if done): removing by gentle swabbing with cotton wool soaked in diethyl ether
- Time after start of exposure: 4h
SCORING SYSTEM: Draize J.H. (1959) Association of Food and Drug Officials of the United States, Austin, Texas, "The Appraisal of the Safety of Chemicals in Foods, Drugs and Cosmetics":
Erythema and Eschar Formation
0 No erythema
1 Very slight erythema (barely perceptible)
2 Well-defined erythema
3 Moderate to severe erythema
4 Severe erythema (beet redness) to slight eschar formation (injuries in depth)
Oedema Formation
0 No oedema
1 Very slight oedema (barely perceptible)
2 Slight oedema (edges of area well-defined by definite raising)
3 Moderate oedema (raised approximately 1 millimetre)
4 Severe oedema (raised more than 1 millimetre and extending beyond the area of exposure)
Primary Irritation Index
0 Non-irritant
> 0 - 2 Mild irritant
> 2 - 5 Moderate irritant
> 5 - 8 Severe irritant
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- animal #1
- Remarks:
- mean
- Time point:
- other: 24h, 48h, 72h
- Score:
- 1
- Max. score:
- 1
- Reversibility:
- fully reversible within: 7 days
- Irritation parameter:
- erythema score
- Basis:
- animal #2
- Remarks:
- mean
- Time point:
- other: 24h, 48h, 72h
- Score:
- 0
- Max. score:
- 0
- Irritation parameter:
- erythema score
- Basis:
- animal #3
- Remarks:
- mean
- Time point:
- other: 24h, 48h, 72h
- Score:
- 0.7
- Max. score:
- 1
- Reversibility:
- fully reversible within: 7 days
- Irritation parameter:
- edema score
- Basis:
- animal #1
- Remarks:
- mean
- Time point:
- other: 24h, 48h, 72h
- Score:
- 0
- Max. score:
- 0
- Irritation parameter:
- edema score
- Basis:
- animal #2
- Remarks:
- mean
- Time point:
- other: 24h, 48h, 72h
- Score:
- 0
- Max. score:
- 0
- Irritation parameter:
- edema score
- Basis:
- animal #3
- Remarks:
- mean
- Time point:
- other: 24h, 48h, 72h
- Score:
- 0
- Max. score:
- 0
- Irritation parameter:
- primary dermal irritation index (PDII)
- Basis:
- mean
- Time point:
- other: 24h, 72h,
- Score:
- 0.5
Applicant's summary and conclusion
- Interpretation of results:
- other: not classified according to EU criteria
- Conclusions:
- Under the conditions of the study, the test material was not irritating to the skin.
- Executive summary:
The test material was investigated for its skin irritation potential in accordance with the standardised guideline OECD 404, under GLP conditions.
During the study the dorsal/flank area of three New Zealand White rabbits was clipped free of fur. 0.5 mL of test material was evenly spread over the intact sites and was held in place, under a semiocclusive dressing, with an elasticated corset. At the end of the 4 -hour exposure period the test material was removed by gentle swabbing with cotton wool soaked in diethyl ether. Test sites were observed for signs of erythema and oedema 1, 24, 48 and 72 hours following removal of the test material.
Under the conditions of the study, no signs of oedema were noted. Very slight erythema was noted in two animals but this effect was fully reversible within 7 days. The mean scores for erythema and oedema were 0.7 and 0, respectively.
Consequently the test material was not considered to be irritating to the skin.
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