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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
sensitisation data (humans)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable study report which meets basic scientific principles
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
1975
Reference Type:
secondary source
Title:
Fragrance raw materials monographs
Author:
Opdyke DLJ
Year:
1979
Bibliographic source:
Fd. Cosmet. Toxicol., 17 (Suppl.), 787

Materials and methods

Type of sensitisation studied:
skin
Study type:
study with volunteers
Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
Human maximization test
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
6,10-dimethylundeca-5,9-dien-2-one
EC Number:
211-711-2
EC Name:
6,10-dimethylundeca-5,9-dien-2-one
Cas Number:
689-67-8
Molecular formula:
C13H22O
IUPAC Name:
6,10-dimethylundeca-5,9-dien-2-one

Method

Type of population:
general
Subjects:
- Number of subjects exposed: 22
- Age: >= 18
Controls:
no data
Route of administration:
dermal
Details on study design:
TYPE OF TEST(S) USED: Maximization test

ADMINISTRATION
- Concentrations: 10%
- vehicle: petrolatum

Results and discussion

Results of examinations:
NO. OF PERSONS WITH/OUT REACTIONS COMPARED TO STUDY POPULATION
- Number of subjects with positive reactions: 0/22
- Number of subjects with negative reactions: 22/22

Applicant's summary and conclusion

Conclusions:
No sensitizing effects were found, when tested at 10% in human.