Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other information
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP Guideline study

Data source

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method B.6 (Skin Sensitisation)
Type of study:
guinea pig maximisation test

Test material

Constituent 1
Chemical structure
Reference substance name:
(3Z)-1-benzofuran-3(2H)-one O-methyloxime
Cas Number:
208711-51-7
Molecular formula:
C9H9NO2
IUPAC Name:
(3Z)-1-benzofuran-3(2H)-one O-methyloxime
Constituent 2
Reference substance name:
(3Z)-1-benzofuran-3(2H)-one O-methyloxime
IUPAC Name:
(3Z)-1-benzofuran-3(2H)-one O-methyloxime

In vivo test system

Test animals

Species:
guinea pig
Strain:
other: Hsd Poc:DH
Sex:
not specified

Study design: in vivo (non-LLNA)

Inductionopen allclose all
Route:
other: intradermal and topical
Vehicle:
polyethylene glycol
Concentration / amount:
Intradermal induction: 5 % in PEG 400
Topical induction: 100 %
1. Challenge: 12 % in PEG 400
2. Challenge: 6 % in PEG 400
Challenge
Concentration / amount:
Intradermal induction: 5 % in PEG 400
Topical induction: 100 %
1. Challenge: 12 % in PEG 400
2. Challenge: 6 % in PEG 400
No. of animals per dose:
Number of animals in test group: 20
Number of animals in negative control group: 10

Results and discussion

In vivo (non-LLNA)

Resultsopen allclose all
Reading:
1st reading
Hours after challenge:
24
Group:
test chemical
Dose level:
12%
No. with + reactions:
9
Total no. in group:
20
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: test group. Dose level: 12%. No with. + reactions: 9.0. Total no. in groups: 20.0.
Reading:
1st reading
Hours after challenge:
48
Group:
test chemical
Dose level:
12 %
No. with + reactions:
10
Total no. in group:
20
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 48.0. Group: test group. Dose level: 12 %. No with. + reactions: 10.0. Total no. in groups: 20.0.
Reading:
2nd reading
Hours after challenge:
24
Group:
test chemical
Dose level:
6 %
No. with + reactions:
11
Total no. in group:
18
Remarks on result:
other: Reading: 2nd reading. . Hours after challenge: 24.0. Group: test group. Dose level: 6 %. No with. + reactions: 11.0. Total no. in groups: 18.0.
Reading:
2nd reading
Hours after challenge:
48
Group:
test chemical
Dose level:
6 %
No. with + reactions:
8
Total no. in group:
18
Remarks on result:
other: Reading: 2nd reading. . Hours after challenge: 48.0. Group: test group. Dose level: 6 %. No with. + reactions: 8.0. Total no. in groups: 18.0.
Reading:
1st reading
Hours after challenge:
24
Group:
negative control
Dose level:
12 %
No. with + reactions:
3
Total no. in group:
9
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: negative control. Dose level: 12 %. No with. + reactions: 3.0. Total no. in groups: 9.0.
Reading:
2nd reading
Hours after challenge:
48
Group:
negative control
Dose level:
6 %
No. with + reactions:
0
Total no. in group:
9
Remarks on result:
other: Reading: 2nd reading. . Hours after challenge: 48.0. Group: negative control. Dose level: 6 %. No with. + reactions: 0.0. Total no. in groups: 9.0.

Applicant's summary and conclusion

Interpretation of results:
sensitising
Remarks:
Migrated information Criteria used for interpretation of results: EU