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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 (LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2005
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2005
Report date:
2005

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 429 (Skin Sensitisation: Local Lymph Node Assay)
Qualifier:
according to guideline
Guideline:
EU Method B.42 (Skin Sensitisation: Local Lymph Node Assay)
GLP compliance:
yes
Type of study:
mouse local lymph node assay (LLNA)

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
466-280-5
EC Name:
-
Cas Number:
67643-70-3
Molecular formula:
C13H23NO2
IUPAC Name:
3,7-dimethylocta-1,6-dien-3-yl N,N-dimethylcarbamate
Details on test material:
Batch No. 9000575061
Purity: 97.4%

In vivo test system

Test animals

Species:
mouse
Strain:
CBA
Sex:
female

Study design: in vivo (LLNA)

Vehicle:
acetone/olive oil (4:1 v/v)
Concentration:
25% and 50% in acetone/olive oil (4:1) and 100% (undiluted)
No. of animals per dose:
3 groups each of four female mice
1 control group of four female

Results and discussion

In vivo (LLNA)

Results
Parameter:
SI
Remarks on result:
other: Group 2 ; test item concentration 25% ; SI=1.6 Group 3; test item concentration 25% ; SI=2.0 Group 4; test item concentration 100% (undiluted) ; SI=1.5

Applicant's summary and conclusion

Interpretation of results:
not sensitising
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
A test item is regarded as a sensitizer in the LLNA if the exposure to one or more test concentration resulted in 3-fold or greater increase in incorporation of 3HTdR compared with concurrent controls, as indicated by the STIMULATION INDEX (S.I.)
GR-86-0999 was therefore found to be a non-sensitizer when tested at up to the concentration 100% (undiluted)