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EC number: 257-843-4 | CAS number: 52315-75-0
- 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
Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1984
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 984
- Report date:
- 1984
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Principles of method if other than guideline:
- Draize test
- GLP compliance:
- not specified
Test material
- Reference substance name:
- N6-(1-oxododecyl)-L-lysine
- EC Number:
- 257-843-4
- EC Name:
- N6-(1-oxododecyl)-L-lysine
- Cas Number:
- 52315-75-0
- Molecular formula:
- C18H36N2O3
- IUPAC Name:
- N6-(1-oxododecyl)-L-lysine
- Test material form:
- solid: particulate/powder
Constituent 1
- Specific details on test material used for the study:
- not further specified
Test animals / tissue source
- Species:
- rabbit
- Strain:
- other: male white
- Details on test animals or tissues and environmental conditions:
- Male white rabbits were purchased from Medical Experimental Animal Institute.
12 healthy animals weighing 2.0 - 2.5 kg were used for the study.
The rabbits were each individually housed in stainless steel rabbit cages.
Temperature: 22+/-3ºC.
Humidity: 50+/-10%.
8 hours/day lighted by artificial illumination.
Oriental RC-4 pellets and tap water ad libitum.
Test system
- Vehicle:
- other: olive oil
- Controls:
- yes, concurrent positive control
- Amount / concentration applied:
- 0.1 mL of a 20% solution of the test item
- Duration of treatment / exposure:
- see below
- Observation period (in vivo):
- up to 192 h
- Number of animals or in vitro replicates:
- 6 per group
- Details on study design:
- The animals were macroscopically confirmed by use of a slip lamp on the day just before the test to have no abnormalities in either eye, then 0.1 mL of 2% sodium fluorescein solution in water was instilled into the eyes, and the eyes were immediately washed with 20 ml of lukewarm water to verify that the cornea was not injured.
On the next day, 0.1 mL of the test sample was instilled into one eye (right) with the lower lid formed into a pocket, and retained there by closure of upper and lower lids for 1 minute to allow the test sample to be dispersed over the whole eyeball, in each of 6 animals per sample. Three of these 6 animals remained with the eyes closed and unwashed, while the remaining 3 animals had their eyes washed with 20 mL of purified lukewarm water at several seconds after instillation of the sample.
The animals were immobilized in stocks for 3 hours after sample instillation, and returned to the cage one by one.
At 24, 48 and 72 hours and 8 days after sample instillation, the reaction in the conjunctive, cornea and iris were scored according to the Draize system with the left eye as control. A slit lamp for ophthalmoscopy was used for observation, and photographs were taken at 24, 72 hours and 8 days after sample instillation.
Observation of general symptoms and determination of body weight were performed at 10 a.m. everyday.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- overall irritation score
- Remarks:
- not rinsed
- Basis:
- mean
- Time point:
- 24 h
- Score:
- 2
- Reversibility:
- fully reversible
- Remarks on result:
- probability of weak irritation
- Irritation parameter:
- overall irritation score
- Remarks:
- not rinsed
- Basis:
- mean
- Time point:
- 48 h
- Score:
- 0
- Reversibility:
- fully reversible
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- overall irritation score
- Remarks:
- rinsed
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Reversibility:
- fully reversible
- Remarks on result:
- no indication of irritation
Applicant's summary and conclusion
- Interpretation of results:
- Category 2B (mildly irritating to eyes) based on GHS criteria
- Conclusions:
- It can be concluded that the test item has nearly no irritating potential for the rabbit eye mucosa.
- Executive summary:
The test sample was prepared as a 20% suspension in olive oil because it is not soluble in water. When it was instilled in the eye, the aforesaid results were obtained. Namely, no symptoms were observed in the unwashed eyes except for slight redness in the conjunctiva 24 hours after instillation, with the complete disappearance of symptoms at 48 hours. In the washed eyes, no irritative symptoms occurred. It seemed reasonable to attribute redness in the unwashed eyes to the solvent olive oil.
In the positive control group (5% solution of SLS in water) moderate irritation was detected.
From the above results it can be concluded that the test item has nearly no irritating potential for the rabbit eye mucosa.
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