Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
skin sensitisation: in vivo (non-LLNA)
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.6 (Skin Sensitisation)
GLP compliance:
yes
Type of study:
guinea pig maximisation test

Test material

Constituent 1
Chemical structure
Reference substance name:
2,3,4,9-tetrahydro-1H-carbazol-3-ol
EC Number:
604-384-6
Cas Number:
14384-34-0
Molecular formula:
C12H13NO
IUPAC Name:
2,3,4,9-tetrahydro-1H-carbazol-3-ol

In vivo test system

Test animals

Species:
guinea pig
Strain:
Dunkin-Hartley
Sex:
male

Study design: in vivo (non-LLNA)

Inductionopen allclose all
Route:
intradermal
Concentration / amount:
Intradermal Induction: 1 % w/v in acetone in Alembicol D
Topical Induction: 80 % in acetone
Topical challenge: 80 % and 40 % in acetone
Challengeopen allclose all
Route:
intradermal and epicutaneous
Concentration / amount:
Intradermal Induction: 1 % w/v in acetone in Alembicol D
Topical Induction: 80 % in acetone
Topical challenge: 80 % and 40 % in acetone
No. of animals per dose:
10 animals test group
5 animals control group

Results and discussion

In vivo (non-LLNA)

Resultsopen allclose all
Reading:
1st reading
Hours after challenge:
24
Group:
test chemical
Dose level:
40 %
No. with + reactions:
0
Total no. in group:
10
Clinical observations:
No signs of ill health or toxicity were recorded.
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: test group. Dose level: 40 %. No with. + reactions: 0.0. Total no. in groups: 10.0. Clinical observations: No signs of ill health or toxicity were recorded..
Reading:
1st reading
Hours after challenge:
48
Group:
test chemical
Dose level:
40 %
No. with + reactions:
0
Total no. in group:
10
Clinical observations:
No signs of ill health or toxicity were recorded.
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 48.0. Group: test group. Dose level: 40 %. No with. + reactions: 0.0. Total no. in groups: 10.0. Clinical observations: No signs of ill health or toxicity were recorded..
Reading:
1st reading
Hours after challenge:
24
Group:
test chemical
Dose level:
80 %
No. with + reactions:
0
Total no. in group:
10
Clinical observations:
No signs of ill health or toxicity were recorded.
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: test group. Dose level: 80 %. No with. + reactions: 0.0. Total no. in groups: 10.0. Clinical observations: No signs of ill health or toxicity were recorded..
Reading:
1st reading
Hours after challenge:
48
Group:
test chemical
Dose level:
80 %
No. with + reactions:
0
Total no. in group:
10
Clinical observations:
No signs of ill health or toxicity were recorded.
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 48.0. Group: test group. Dose level: 80 %. No with. + reactions: 0.0. Total no. in groups: 10.0. Clinical observations: No signs of ill health or toxicity were recorded..
Reading:
1st reading
Hours after challenge:
24
Group:
negative control
Dose level:
40 %
No. with + reactions:
0
Total no. in group:
5
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: negative control. Dose level: 40 %. No with. + reactions: 0.0. Total no. in groups: 5.0.
Reading:
1st reading
Hours after challenge:
48
Group:
negative control
Dose level:
80 %
No. with + reactions:
0
Total no. in group:
5
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 48.0. Group: negative control. Dose level: 80 %. No with. + reactions: 0.0. Total no. in groups: 5.0.

Applicant's summary and conclusion

Interpretation of results:
not sensitising
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
In this study the TS did not produce evidence of skin sensitisation (delayed contact hypersensitivity) in any of the ten test animals.