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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Strating material and the final product which are of very similar structure and functionality are not sensitising.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1978

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 406 (Skin Sensitisation)
GLP compliance:
not specified
Type of study:
patch test

Test material

Constituent 1
Reference substance name:
Bis(4-fluorophenyl) ketone
EC Number:
206-466-3
EC Name:
Bis(4-fluorophenyl) ketone
Cas Number:
345-92-6
IUPAC Name:
bis(4-fluorophenyl)methanone
Details on test material:
BDF is the final product produced from difluorodiphenly methane and only difference being thje removal of a methyl group for a ketone.

In vivo test system

Test animals

Species:
guinea pig
Strain:
other: spf:-derived albino strain
Sex:
not specified

Study design: in vivo (non-LLNA)

Inductionopen allclose all
Route:
epicutaneous, occlusive
Vehicle:
other: DMF
Concentration / amount:
10%, 1% & 0.1%
Challengeopen allclose all
Route:
epicutaneous, occlusive
Vehicle:
other: DMF
Concentration / amount:
10%, 1% & 0.1%
No. of animals per dose:
Unknown
Positive control substance(s):
not specified

Results and discussion

In vivo (non-LLNA)

Results
Reading:
1st reading
Hours after challenge:
24
Group:
test chemical
Dose level:
10%
No. with + reactions:
0
Total no. in group:
3
Clinical observations:
No erythematous reactions.
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: test group. Dose level: 10%. No with. + reactions: 0.0. Total no. in groups: 3.0. Clinical observations: No erythematous reactions..

Applicant's summary and conclusion

Interpretation of results:
not sensitising
Remarks:
Migrated information
Conclusions:
We have classified this material as not sensiting due to our extensive experience in handling this substance and the animal testing completed on a very similar chemical.