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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 423-730-5 | CAS number: 250688-43-8
Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1997
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 977
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
- Version / remarks:
- 92/69/EEC
- Deviations:
- not specified
- GLP compliance:
- yes
Test material
- Reference substance name:
- -
- EC Number:
- 423-730-5
- EC Name:
- -
- Cas Number:
- 250688-43-8
- Molecular formula:
- C18H15N3Na2O9S3
- IUPAC Name:
- Disodium 4-amino-3-[(4-{[2-(sulfonatooxy)ethyl]sulfonyl}phenyl)diazenyl]naphthalene-1-sulfonate
- Test material form:
- solid: particulate/powder
Constituent 1
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
Test system
- Vehicle:
- not specified
- Controls:
- not specified
- Amount / concentration applied:
- 70 mg
- Number of animals or in vitro replicates:
- 3
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 1.3
- Max. score:
- 2
- Reversibility:
- not fully reversible within: 21 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 1.3
- Max. score:
- 2
- Reversibility:
- not fully reversible within: 21 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- conjunctivae score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 1.3
- Max. score:
- 2
- Reversibility:
- not fully reversible within: 21 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0.3
- Max. score:
- 2
- Reversibility:
- not fully reversible within: 21 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0.3
- Max. score:
- 2
- Reversibility:
- not fully reversible within: 21 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- chemosis score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0.3
- Max. score:
- 2
- Reversibility:
- not fully reversible within: 21 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0.3
- Max. score:
- 1
- Reversibility:
- not fully reversible within: 21 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0.3
- Max. score:
- 1
- Reversibility:
- not fully reversible within: 21 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 1
- Max. score:
- 1
- Reversibility:
- not fully reversible within: 21 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- iris score
- Basis:
- animal #1
- Time point:
- 24/48/72 h
- Score:
- 0.3
- Max. score:
- 1
- Reversibility:
- not fully reversible within: 21 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- iris score
- Basis:
- animal #2
- Time point:
- 24/48/72 h
- Score:
- 0.3
- Max. score:
- 1
- Reversibility:
- not fully reversible within: 21 days
- Remarks on result:
- positive indication of irritation
- Irritation parameter:
- iris score
- Basis:
- animal #3
- Time point:
- 24/48/72 h
- Score:
- 0.7
- Max. score:
- 1
- Reversibility:
- not fully reversible within: 21 days
- Remarks on result:
- positive indication of irritation
- Irritant / corrosive response data:
- Reversibility of any observed effect: Changes not fully reversible within 21 days
- Other effects:
- Residual test material was noted around the treated eye of
all animals throughout the study.
Red/brown-coloured staining was noted in all treated eyes
during the study. This did not affect evaluation of occular
effects.
Staining of the iris was present in 2 of the 3 animals at
the end of the 21-day observation period.
Applicant's summary and conclusion
- Interpretation of results:
- Category 1 (irreversible effects on the eye) based on GHS criteria
- Conclusions:
- The substance is requires H318 due to persistent staining of the iris.
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.
