Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 230-303-5 | CAS number: 7023-61-2
Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1977
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 977
- Report date:
- 1977
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Deviations:
- yes
- Remarks:
- No assessment of non-ocular local and systemic adverse effects, no rationale for in vivo testing
- GLP compliance:
- no
Test material
- Reference substance name:
- Calcium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
- EC Number:
- 230-303-5
- EC Name:
- Calcium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate
- Cas Number:
- 7023-61-2
- Molecular formula:
- C18H13ClN2O6S.Ca
- IUPAC Name:
- calcium 4-[(5-chloro-4-methyl-2-sulfonatophenyl)diazenyl]-3-hydroxy-2-naphthoate
- Test material form:
- solid: nanoform
- Details on test material:
- Batch: EG 9146
Appearance: red powder
Test materials used in this dossier are all considered to fall under the definition of nano-materials according to the European Commission Recommendation 2011/696/EU as the synthesis and manufacturing of this pigment always yields particulate material with a fine particle size distribution.
Constituent 1
- Specific details on test material used for the study:
- - Name of test material (as cited in study report):PD 1201
- Batch EG 9146
- Substance type: red pigment
- Physical state: solid
- Purity test date: not available
- Stability under test conditions: stable
- Storage condition of test material: room temperature
- Composition: 95% C.I. Pigment Red 48 - Calcium Salt and 5% modified wood rosin derivative
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS
- Source: bred on the premises
- Age at study initiation: 10 - 13 weeks
- Housing: single caging
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum) :ad libitum
- Acclimation period: one week
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20°C
- Humidity (%): 50 - 70%
- Air changes (per hr): no data
- Photoperiod (hrs dark / hrs light): 10 hours daily from 08:00 - 18:00 hours
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- not required
- Amount / concentration applied:
- 0.1 g per eye
- Duration of treatment / exposure:
- single application. For half of the treated eyes, the eyes were rinsed with 200 mL of water 30 seconds after application.
- Observation period (in vivo):
- 14 days
- Number of animals or in vitro replicates:
- 3 males and 3 females
- Details on study design:
- The rabbits were examined at 1,6, 24, 48 and 72 hours after application of the test compound and for any further period that was considered necessary. The ocular reactions were scored by the method described in "Appraisal of the Safety of Chemicals in Food Drugs and Cosmetics" page 51, published by the Association of Food and Drug Officials of the U.S.A. Corneal damage was assessed after staining with flourescein.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- iris score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Irritation parameter:
- cornea opacity score
- Basis:
- mean
- Time point:
- other: 1h and 24h
- Score:
- 1
- Max. score:
- 4
- Reversibility:
- fully reversible within: 4 days
- Irritation parameter:
- cornea opacity score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.66
- Max. score:
- 4
- Reversibility:
- fully reversible within: 4 days
- Irritation parameter:
- conjunctivae score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 3
- Reversibility:
- fully reversible within: 3 days
- Remarks on result:
- other: Grade 1 redness of the conjunctivae observed in all animals at the 1h reading.
- Irritation parameter:
- chemosis score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 2 days
- Remarks on result:
- other: Grade 2 chemosis observed in animals with unrinsed eyes at the 1h reading.
- Other effects:
- Rinsing of the eyes had a minor beneficiary effect.
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
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.
