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EC number: 219-581-9 | CAS number: 2467-13-2
- 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:
- 01 October 2003 to 08 December 2003
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 003
- Report date:
- 2003
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Details on test material:
- - Physical state: Colourless liquid
- Date received: 20 December 2002
- Storage condition of test material: Room temperature in the dark, over silica gel, under nitrogen
Constituent 1
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- ANIMALS AND ANIMAL HUSBANDRY
- Three New Zealand White rabbits were supplied by David Percival Ltd, Moston, Sandbach, Cheshire, UK.
- At the start of the study the animals were in the weight range 2.0 kg to 3.5 kg and were 12 to 20 weeks old.
- After an acclimatisation period of at least 5 days each animal was given a number unique within the study, which was written with a black indelible marker-pen on the inner surface of the ear and on the cage label.
- Animals were individually housed in suspended metal cages.
- Free access to mains drinking water and food (Certified Rabbit Diet (Code 5322) supplied by International Product Supplies Limited, Wellingborough, Northants, UK) was allowed throughout the study.
- The diet and drinking water were considered not to contain any contaminant of a level that might have affected the purpose or integrity of the study.
- Temperature and relative humidity were set to achieve limits of 17 °C to 23 °C and 30 % to 70 % respectively. Any occasional deviations from these targets were considered not to have affected the purpose or integrity of the study.
- The rate of air exchange was at least 15 changes per hour.
- Lighting was controlled by a time switch to give 12 hours continuous light (06:00 to 18:00) and 12 hours darkness.
- Animals were provided with environmental enrichment items, which were considered not to contain any contaminant of a level that might have affected the purpose or integrity of the study.
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- no
- Amount / concentration applied:
- 0.1 mL
- Duration of treatment / exposure:
- Single application
- Observation period (in vivo):
- 14 days
- Number of animals or in vitro replicates:
- Three
- Details on study design:
- PREPARATION OF TEST MATERIAL
- The absorption of the test material was not determined.
MEASUREMENT OF pH
- The pH of the test item was determined prior to commencement of the study and found to be 4.7 for a 10 % v/v aqueous preparation.
PROCEDURE
- Immediately before the start of the test, both eyes of the provisionally selected test rabbits were examined for evidence of ocular irritation or defect with the aid of a light source from a standard opthalmoscope.
- Only animals free of ocular damage were used.
- Initially, a single rabbit was treated. A volume of 0.1 mL of the test material was placed into the conjunctival sac of the right eye, formed by gently pulling the lower lid away from the eyeball. The upper and lower lids were held together for about 1 s immediately after treatment, to prevent loss of the test material, and then released.
- Immediately after adinistration of the test material, an assessment of the initial pain reaction was made according to the six point scale shown in Appendix 1 (attached).
- After consideration of the ocular responses produced in the first treated animal, two additional animals were treated. In order to minimise pain on application of the test material, one drop of local anaesthetic (amethocaine hydrochloride 0.5 %, Chauvin Pharmaceuticals, Romford, Essex, UK) was instilled into both eyes of these animals 1 to 2 minutes before treatment.
- Assessment of ocular damage was made approximately 1 hour and 24, 48 and 72 hours following treatment according to the numerical evaluation (Draize scale) given in Appendix 2 (attached).
- Any other ocular effects were also noted. Examination of the eye was facilitated by the use of the light source from a standard opthalmoscope.
- Additional observations were made on Days 7 and 14 to assess the reversibility of the ocular effects.
INTERPRETATION OF RESULTS
- Numerical scores corresponding to each animal, tissue and observation time were recorded.
- Data relating to the conjuntivae were designated by the letters A (redness), B (chemosis) and C (discharge).
- Data relating to the iris were designated by the letter D.
- Data relating to the cornea were designated by the letter E (degree of opacity) and F (area of cornea involved).
- Score for conjuntivae = (A + B + C) * 2
- Score for iris = D * 5
- Score for cornea = (E x F) * 5
- Using the numerical data obtained, a modified version of the system described by Kay and Calandra (1962) was used to classify the ocular irritancy potential of the test material (see Appendix 3, attached). This was achieved by adding together the scores for the cornea, iris and conjuntivae for each time point for each rabbit.
- The group means of the total scores for each observation were calculated. The highest of these group means (the maximum group mean score) together with the persistence of the reactions enabled classification of the eye irritancy potential of the test material.
- If evidence of irreversible ocular damage was noted, the test material would be classified as corrosive to the eye.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- cornea opacity score
- Remarks:
- opacity
- Basis:
- animal #1
- Remarks:
- mean score
- Time point:
- other: 24, 48 and 72 h
- Score:
- 0
- Max. score:
- 4
- Reversibility:
- other: not applicable
- Remarks on result:
- other: 178 male
- Irritation parameter:
- iris score
- Basis:
- animal #1
- Remarks:
- mean score
- Time point:
- other: 24, 48 and 72 h
- Score:
- 0.33
- Max. score:
- 2
- Reversibility:
- fully reversible within: 48 h
- Remarks on result:
- other: 178 male
- Irritation parameter:
- conjunctivae score
- Remarks:
- redness
- Basis:
- animal #1
- Remarks:
- mean score
- Time point:
- other: 24, 48 and 72 h
- Score:
- 1
- Max. score:
- 3
- Reversibility:
- fully reversible within: 72 h
- Remarks on result:
- other: 178 male
- Irritation parameter:
- chemosis score
- Basis:
- animal #1
- Remarks:
- mean score
- Time point:
- other: 24, 48 and 72 h
- Score:
- 1
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 h
- Remarks on result:
- other: 178 male
- Irritation parameter:
- cornea opacity score
- Remarks:
- opacity
- Basis:
- animal #2
- Remarks:
- mean score
- Time point:
- other: 24, 48 and 72 h
- Score:
- 0.67
- Max. score:
- 4
- Reversibility:
- fully reversible within: 7 d
- Remarks on result:
- other: 14 male
- Irritation parameter:
- iris score
- Basis:
- animal #2
- Remarks:
- mean score
- Time point:
- other: 24, 48 and 72 h
- Score:
- 0.67
- Max. score:
- 2
- Reversibility:
- fully reversible within: 7 d
- Remarks on result:
- other: 14 male
- Irritation parameter:
- conjunctivae score
- Remarks:
- redness
- Basis:
- animal #2
- Remarks:
- mean score
- Time point:
- other: 24, 48 and 72 h
- Score:
- 2
- Max. score:
- 3
- Reversibility:
- fully reversible within: 14 d
- Remarks on result:
- other: 14 male
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Remarks:
- mean score
- Time point:
- other: 24, 48 and 72 h
- Score:
- 2
- Max. score:
- 4
- Reversibility:
- fully reversible within: 14 d
- Remarks on result:
- other: 14 male
- Irritation parameter:
- cornea opacity score
- Remarks:
- opacity
- Basis:
- animal #3
- Remarks:
- mean score
- Time point:
- other: 24, 48 and 72 h
- Score:
- 1.67
- Max. score:
- 4
- Reversibility:
- fully reversible within: 7 d
- Remarks on result:
- other: 15 male
- Irritation parameter:
- iris score
- Basis:
- animal #3
- Remarks:
- mean score
- Time point:
- other: 24, 48 and 72 h
- Score:
- 1
- Max. score:
- 2
- Reversibility:
- fully reversible within: 7 d
- Remarks on result:
- other: 15 male
- Irritation parameter:
- conjunctivae score
- Remarks:
- redness
- Basis:
- animal #3
- Remarks:
- mean score
- Time point:
- other: 24, 48 and 72 h
- Score:
- 2
- Max. score:
- 3
- Reversibility:
- fully reversible within: 14 d
- Remarks on result:
- other: 15 male
- Irritation parameter:
- chemosis score
- Basis:
- animal #3
- Remarks:
- mean score
- Time point:
- other: 24, 48 and 72 h
- Score:
- 2
- Max. score:
- 4
- Reversibility:
- fully reversible within: 14 d
- Remarks on result:
- other: 15 male
Any other information on results incl. tables
RESULTS
- Individual and group mean scores for ocular irritiation are given in Table 1 and Table 2 (attached).
- Scattered or diffuse corneal opacity was noted in one treated eye at the 24 hour observation with translucent corneal opacity at the 48 hour and 72 hour observation. Scattered or diffuse corneal opacity was alo noted in one other treated eye at the 48 hour and 72 hour observation.
- Iridial inflammation was noted in two treated eyes at the 24 hour observation. Iridial inflammation persisted in one treated eye, developed in one other treated eye at the 48 hour observation and persisted in these two treated eyes at the 72 hour observation.
- Moderate conjunctival irritation was noted in all treated eyes at 1 hour and 24 hours after treatment. Moderate conjunctival irritation was noted in two treated eyes with minimal conjunctival irritation noted in the remaining treated eye at the 48 hour observation. Moderate conjunctival irritation was noted in two treated eyes at the 72 hour observation with minimal conjunctival irritation at the 7 day observation.
- Pale appearance of the nictitating membrane was noted in one treated eye at the 48 hour and 72 hour observations.
- One treated eye appeared normal at the 72 hour observation and the remaining treated eyes appeared normal at the 14 day observation.
Applicant's summary and conclusion
- Interpretation of results:
- other: Irritating to eyes (category 2)
- Remarks:
- Criteria used for interpretation of results: EU
- Conclusions:
- The test material produced a maximum group mean score of 24.3 and was classified as a moderate irritant (Class 5 on a 1 to 8 scale) to the rabbit eye according to a modified Kay and Calandra classification system. Since the mean scores for conjunctival redness and chemosis calculated from observations at 24, 48 and 72 hours were ≥ 2 in two out of three animals, classification as irritating to eyes (category 2) is required in accordance with Regulation (EC) No 1272/2008..
- Executive summary:
INTRODUCTION
The study was performed to assess the irritancy potential of the test material to the eye of the New Zealand White rabbit. The method was designed to meet the requirements of OECD Guidelines for the Testing of Chemicals No 405 "Acute Eye Irritation/Corrosion" (adopted 24 April 2002) and Commission Directive 92/69/EEC Method B.5 Acute Toxicity (Eye Irritation).
RESULT
A single application of the test material to the non-irrigated eye of three rabbits produced scattered or diffuse to translucent corneal opacity, iridial inflammation and moderate conjunctival irritation. Pale appearance of the nictitating membrane was also noted in one treated eye. One treated eye appeared normal at the 72 hour observation and the remaining treated eyes appeared normal at the 14 day observation.
CONCLUSION
The test material produced a maximum group mean score of 24.3 and was classified as a moderate irritant (Class 5 on a 1 to 8 scale) to the rabbit eye according to a modified Kay and Calandra classification system. Since the mean scores for conjunctival redness and chemosis calculated from observations at 24, 48 and 72 hours were ≥ 2 in two out of three animals, classification as irritating to eyes (category 2) is required in accordance with Regulation (EC) No 1272/2008.
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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