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EC number: - | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
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- Particle size distribution (Granulometry)
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- Acute Toxicity
- Irritation / corrosion
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- Repeated dose toxicity
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- Carcinogenicity
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![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_toxicological-information.png)
Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 2014-12-09 to 2014-12-14
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- other: GB/T 21609-2008 Chemicals - Test method of acute eye irritation/corrosion
- Deviations:
- no
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Deviations:
- no
- GLP compliance:
- no
- Remarks:
- authorized by CNAS
Test material
- Test material form:
- solid: particulate/powder
Constituent 1
- Specific details on test material used for the study:
- - Purity: 100.0%
- Lot No.: KNC110310
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS
- Source: Tianqin biotechnology Ltd., Changsha
- Weight at study initiation: 2.0 ~ 2.3 kg
- Housing: housed in common environment
- Diet: All ofthe feeds were supplied by Tianqin Biotechnology Ltd., Changsha
- Acclimation period: at least 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 21-23
- Humidity (%): 57-62
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- yes, concurrent no treatment
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 100 mg - Observation period (in vivo):
- 4 day
- Number of animals or in vitro replicates:
- 2 female and 2 male
- Details on study design:
- - Treatment of the test substance: An appropriate amount of the test substance was grinded
- Exposure: The animal left eyelid was opened lightly, and about 100 mg of the test substance was applied on the cornea, the lids are then gently held together for one second.
- Observation: The eyes were examined at 1h, 24h, 48h, 72 h and the 4th day, and the scores were recorded.
SCORING SYSTEM: Draize
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- cornea opacity score
- Basis:
- other: All 4 animal tested
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Irritation parameter:
- iris score
- Basis:
- other: all 4 animal tested
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 0
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0.67
- Max. score:
- 2
- Reversibility:
- fully reversible within: 72 h
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 1.33
- Max. score:
- 2
- Reversibility:
- fully reversible within: 4 d
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 1
- Reversibility:
- fully reversible within: 48h
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #4
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 2
- Reversibility:
- fully reversible within: 72h
- Irritation parameter:
- chemosis score
- Basis:
- animal: #1 and #3
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 1
- Reversibility:
- fully reversible within: 24 h
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 1
- Reversibility:
- fully reversible within: 4 d
- Irritation parameter:
- chemosis score
- Basis:
- animal #4
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 1
- Reversibility:
- fully reversible within: 48h
- Irritant / corrosive response data:
- One hour after administration, the conjunctiva of the rabbits signed No.1 and No.2 were cardinal red congestion and light dropsy and having more excretion. The conjunctiva of the rabbits signed No.3 and No.4 were bright red congestion and light dropsy and having a small amount excretion. Twenty-four hours after administration, the conjunctiva of the rabbits signed No.2 and No.4 were cardinal red congestion and light dropsy and having a great quantity excretion. The dropsy of the conjunctiva of the rabbits signed No.1 and No.3 disappeared. Forty-eight hours after administration, the irritation of the four rabbits lightened. And the eye of the rabbits signed No.1, No.3 and No.4 recovered in the time of 72 h after administration. The eye of the rabbits signed No.2 recovered in the time of the 4th day. The irritation of Cornea and Iris were not observed.
- Other effects:
- Individual body weights were rising after exposing.
Any other information on results incl. tables
Eye Damage and Scoring:
|
Female #1 |
Female #2 |
Male #3 |
Male #4 |
||||||||||||
1h |
24h |
48h |
72h |
1h |
24h |
48h |
72h |
1h |
24h |
48h |
72h |
1h |
24h |
48h |
72h |
|
cornea opacity |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
conjunctivae |
2 |
1 |
1 |
0 |
2 |
2 |
1 |
1 |
1 |
1 |
0 |
0 |
1 |
2 |
1 |
0 |
chemosis |
1 |
0 |
0 |
0 |
1 |
1 |
1 |
1 |
1 |
0 |
0 |
0 |
1 |
1 |
0 |
0 |
Iris |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Remarks:
- Not classified
- Conclusions:
- The mean cornea opacity and iris scores at 24, 48 and 72 h for each animal were all 0. The mean conjunctivae scores were 0.67, 1.33, 0.33, 1 and the mean chemosis scores were 0, 1, 0, 0.33, respectively at 24, 48 and 72 h after installation. All the irritations disappeared within 4 days.
- Executive summary:
The irritation/corrosion effects of the test substance on eyes of rabbit were assessed in accordance with GB/T 21609-2008 Chemicals - Test method of acute eye irritation/corrosion.
100 mg of the test substance was applied on the left cornea of 2 female and 2 male White New Zealand rabbits. The untreated right eye was used as control.
The mean cornea opacity and iris scores at 24, 48 and 72 h for each animal were all 0. The mean conjunctivae scores were 0.67, 1.33, 0.33, 1 and the mean chemosis scores were 0, 1, 0, 0.33, respectively at 24, 48 and 72 h. All the irritations disappeared within 4 days.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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