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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Administrative data

Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1997

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2,3,4,9-tetrahydro-1H-carbazol-3-one
EC Number:
610-619-3
Cas Number:
51145-61-0
Molecular formula:
C12H11NO
IUPAC Name:
2,3,4,9-tetrahydro-1H-carbazol-3-one

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White

Test system

Vehicle:
unchanged (no vehicle)
Controls:
other: contralateral eye untreated
Duration of treatment / exposure:
24 h
Observation period (in vivo):
60 min, 24, 48 ,72 hours after instillation
Number of animals or in vitro replicates:
3 rabbits

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
overall irritation score
Remarks:
Cornea and Iris
Basis:
mean
Time point:
other: 1 hours to 3 days after instillation
Score:
0
Max. score:
0
Irritation parameter:
overall irritation score
Remarks:
Redness
Basis:
mean
Time point:
other: 1 hour to 2 days after instillation
Score:
1
Max. score:
1
Reversibility:
fully reversible within: 3 days
Irritation parameter:
overall irritation score
Remarks:
Chemosis
Basis:
mean
Time point:
other: 1 hour to 2 days after instillation
Score:
1
Max. score:
1
Reversibility:
fully reversible within: 3 days

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information
Conclusions:
Instillation of the TS into the rabbit eye elicited transient very slight conjuctival irritation only. All reactions had resolved by three days after instillation. No labelling required.