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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 222-429-4 | CAS number: 3468-63-1
Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 973
- Report date:
- 1973
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- GLP compliance:
- no
Test material
- Reference substance name:
- 1-[(2,4-dinitrophenyl)azo]-2-naphthol
- EC Number:
- 222-429-4
- EC Name:
- 1-[(2,4-dinitrophenyl)azo]-2-naphthol
- Cas Number:
- 3468-63-1
- Molecular formula:
- C16H10N4O5
- IUPAC Name:
- 1-[(2,4-dinitrophenyl)diazenyl]-2-naphthol
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
Constituent 1
Test animals / tissue source
- Species:
- rabbit
- Strain:
- other: Gelb-Silber
Test system
- Vehicle:
- other: Sesame oil
- Controls:
- yes, concurrent no treatment
- Duration of treatment / exposure:
- Single exposure of 0.1 mL of 5 or 10% suspension of C.I. Pigment Orange 5 in sesame oil
- Observation period (in vivo):
- 24 hours
- Number of animals or in vitro replicates:
- 6
Results and discussion
In vivo
Results
- Irritation parameter:
- overall irritation score
- Basis:
- mean
- Time point:
- other: 3 to 7 hours
- Reversibility:
- fully reversible within: 24 hours
- Remarks on result:
- other: Very slight redness after 3 to 7 hours was observed for three rabbits exposed to the highest concentration of 10% of C.I. Pigment Orange 5 in Sesame oil. The redness was not observed after 24 hours, and the rabbit of 5% dilution showed no reaction.
- Other effects:
- Very slight redness after 3 to 7 hours was observed for three rabbits exposed to the highest concentration of 10% of C.I. Pigment Orange 5 in Sesame oil. The redness was not observed after 24 hours, and the rabbit of 5% dilution showed no reaction.
Applicant's summary and conclusion
- Interpretation of results:
- not irritating
- Remarks:
- Migrated information Criteria used for interpretation of results: US CPSC / US FDA
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.
