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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
skin sensitisation: in vivo (non-LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP-study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002
Report date:
2002

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method B.6 (Skin Sensitisation)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of study:
guinea pig maximisation test

Test material

Constituent 1
Chemical structure
Reference substance name:
2-propynyl butylcarbamate
EC Number:
616-291-8
Cas Number:
76114-73-3
Molecular formula:
C8H13NO2
IUPAC Name:
2-propynyl butylcarbamate

In vivo test system

Test animals

Species:
guinea pig
Strain:
other: Hsd Poc:DH
Sex:
female

Study design: in vivo (non-LLNA)

Inductionopen allclose all
Route:
intradermal
Vehicle:
polyethylene glycol
Concentration / amount:
Intradermal induction: 5 % (= 20 mg test item/animal)
Topical induction: 100 % (= 500 mg test item/animal)
Challenge: 100 % (= 500 mg test item/animal)
Challengeopen allclose all
Route:
epicutaneous, occlusive
Vehicle:
polyethylene glycol
Concentration / amount:
Intradermal induction: 5 % (= 20 mg test item/animal)
Topical induction: 100 % (= 500 mg test item/animal)
Challenge: 100 % (= 500 mg test item/animal)
No. of animals per dose:
No of animals in test group: 10 animals
No of animals in negative control group:5 animals

Results and discussion

In vivo (non-LLNA)

Resultsopen allclose all
Reading:
1st reading
Hours after challenge:
48
Group:
negative control
Dose level:
100%
No. with + reactions:
0
Total no. in group:
5
Clinical observations:
red wheal, encrustation, white wheal with red surrounding, white wheal encrustation (after 7 days the following effects were recorded at the injection sites: wheals and encrustations.)
Remarks on result:
other: see Remark
Remarks:
Reading: 1st reading. . Hours after challenge: 48.0. Group: negative control. Dose level: 100%. No with. + reactions: 0.0. Total no. in groups: 5.0. Clinical observations: red wheal, encrustation, white wheal with red surrounding, white wheal encrustation (after 7 days the following effects were recorded at the injection sites: wheals and encrustations.).
Reading:
2nd reading
Hours after challenge:
72
Group:
negative control
Dose level:
100%
No. with + reactions:
0
Total no. in group:
5
Remarks on result:
other: Reading: 2nd reading. . Hours after challenge: 72.0. Group: negative control. Dose level: 100%. No with. + reactions: 0.0. Total no. in groups: 5.0.
Reading:
1st reading
Hours after challenge:
48
Group:
test chemical
Dose level:
100 %
No. with + reactions:
6
Total no. in group:
10
Clinical observations:
red wheal, encrustation, white wheal with red surrounding (after 7 days the following effects were recorded at the injection sites: wheals and encrustations.)
Remarks on result:
other: see Remark
Remarks:
Reading: 1st reading. . Hours after challenge: 48.0. Group: test group. Dose level: 100 %. No with. + reactions: 6.0. Total no. in groups: 10.0. Clinical observations: red wheal, encrustation, white wheal with red surrounding (after 7 days the following effects were recorded at the injection sites: wheals and encrustations.).
Reading:
2nd reading
Hours after challenge:
72
Group:
test chemical
Dose level:
100 %
No. with + reactions:
1
Total no. in group:
10
Remarks on result:
other: Reading: 2nd reading. . Hours after challenge: 72.0. Group: test group. Dose level: 100 %. No with. + reactions: 1.0. Total no. in groups: 10.0.

Applicant's summary and conclusion

Interpretation of results:
sensitising
Remarks:
Migrated information