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EC number: 250-701-2 | CAS number: 31565-19-2
- 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:
- 17 October 1983 - 24 October 1983
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 983
- Report date:
- 1983
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Isooctyl acetate
- EC Number:
- 250-701-2
- EC Name:
- Isooctyl acetate
- Cas Number:
- 31565-19-2
- Molecular formula:
- C10H20O2
- IUPAC Name:
- Acetic acid, isooctyl ester
Constituent 1
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Exxon Chemical Company
- Expiration date of the lot/batch: Not given
- Description: Colorless
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS
- Source: Hazleton Dutchland, Inc., Denver, PA
- Age at study initiation: Approximately 17 to 23 weeks
- Weight at study initiation: 2.7 to 4.14 kg
- Housing: Individual, suspended stainless steel, No bedding
- Diet (e.g. ad libitum): Purina rabbit chow HF (Pellets), ad libitum
- Water (e.g. ad libitum): Automatic watering system, ad libitum
- Acclimation period: 41 to 77 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 18 to 21 °C
- Humidity (%): 40 to 70%
- Photoperiod (hrs dark / hrs light): 12 hrs dark/12 hrs light
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- yes, concurrent no treatment
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 ml
- Concentration (if solution): Assumed 100% - Duration of treatment / exposure:
- 72 h
- Observation period (in vivo):
- 1, 4, 24, 48, 72 h
- Number of animals or in vitro replicates:
- 6 (2 male; 4 female)
- Details on study design:
- REMOVAL OF TEST SUBSTANCE
- Washing (if done): Not carried out
SCORING SYSTEM: Draize Standard Eye Irritation Grading Scale (Draize, 1959)
TOOL USED TO ASSESS SCORE: naked eye and fluoresceince to deted corneal ulceration
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #1
- Time point:
- 24 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #1
- Time point:
- 48 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #1
- Time point:
- 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- iris score
- Basis:
- animal #1
- Time point:
- 24 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- fully reversible
- Irritation parameter:
- iris score
- Basis:
- animal #1
- Time point:
- 48 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- fully reversible
- Irritation parameter:
- iris score
- Basis:
- animal #1
- Time point:
- 72 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- fully reversible
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #1
- Time point:
- 24 h
- Score:
- 0
- Max. score:
- 3
- Reversibility:
- fully reversible
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #1
- Time point:
- 48 h
- Score:
- 0
- Max. score:
- 3
- Reversibility:
- fully reversible
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #1
- Time point:
- 72 h
- Score:
- 0
- Max. score:
- 3
- Reversibility:
- fully reversible
- Irritation parameter:
- chemosis score
- Basis:
- animal #1
- Time point:
- 24 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- chemosis score
- Basis:
- animal #1
- Time point:
- 48 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- chemosis score
- Basis:
- animal #1
- Time point:
- 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #2
- Time point:
- 24 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #2
- Time point:
- 48 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #2
- Time point:
- 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- iris score
- Basis:
- animal #2
- Time point:
- 24 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- fully reversible
- Irritation parameter:
- iris score
- Basis:
- animal #2
- Time point:
- 48 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- fully reversible
- Irritation parameter:
- iris score
- Basis:
- animal #2
- Time point:
- 72 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- fully reversible
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #2
- Time point:
- 24 h
- Score:
- 0
- Max. score:
- 3
- Reversibility:
- fully reversible
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #2
- Time point:
- 48 h
- Score:
- 0
- Max. score:
- 3
- Reversibility:
- fully reversible
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #2
- Time point:
- 72 h
- Score:
- 0
- Max. score:
- 3
- Reversibility:
- fully reversible
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Time point:
- 24 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Time point:
- 48 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Time point:
- 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #3
- Time point:
- 24 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #3
- Time point:
- 48 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #3
- Time point:
- 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- iris score
- Basis:
- animal #3
- Time point:
- 24 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- fully reversible
- Irritation parameter:
- iris score
- Basis:
- animal #3
- Time point:
- 48 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- fully reversible
- Irritation parameter:
- iris score
- Basis:
- animal #3
- Time point:
- 72 h
- Score:
- 0
- Max. score:
- 2
- Reversibility:
- fully reversible
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #3
- Time point:
- 24 h
- Score:
- 0
- Max. score:
- 3
- Reversibility:
- fully reversible
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #3
- Time point:
- 48 h
- Score:
- 0
- Max. score:
- 3
- Reversibility:
- fully reversible
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #3
- Time point:
- 72 h
- Score:
- 0
- Max. score:
- 3
- Reversibility:
- fully reversible
- Irritation parameter:
- chemosis score
- Basis:
- animal #3
- Time point:
- 24 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- chemosis score
- Basis:
- animal #3
- Time point:
- 48 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritation parameter:
- chemosis score
- Basis:
- animal #3
- Time point:
- 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- fully reversible
- Irritant / corrosive response data:
- Conjunctival irritation consisted of redness ranging from some vessels definitely injected to diffuse, crimson red, individual vessels not easily discernible. All eyes were clear of all signs of irritation by the 72 hour observation.
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- Some conjunctival irriration was observed in some animals but were all reversible within 72 hours.
- Executive summary:
The ocular irritation potential of MRD-83-303was evaluated following a single 0.1 ml instillation to the right eye of 6 rabbits. The treated eyes of all
animals remained unwashed. Observations for signs of ocular irritation and
Toxicity were made at 1, 4, 21, 48 and 72 hours post-instillation and once per
day on days 4 and 7. Ocular reactions were graded according to the Draize scale for scoring ocular lesions. Body weights were recorded on the day of dosing. After the day 7 observations, all animals were euthanized with an i.v. injection of t-61.
Conjunctival irritation consisted of redness ranging from some vessels definitely injected to diffuse, crimson red, individual vessels not easily
discernible. All eyes were clear of all signs of irritation by the 72 hour
observation.
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