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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Secondary literature; result presented without detailed documentation.

Data source

Reference
Reference Type:
secondary source
Title:
Report to RIFM, 10 May 1976
Author:
Kligman AM
Year:
1976
Bibliographic source:
Cited in Opdyke DLJ (1978). Fragrance raw materials monographs. Methyl acetoacetate. Food Cosmet Toxicol 16: 815

Materials and methods

Type of sensitisation studied:
skin
Study type:
study with volunteers
Principles of method if other than guideline:
The maximization test was carried out according to Kligman AM and Epstein W (1975). Updating the maximization test for identifying contact allergens. Contact Dermatitis 1: 231. Cited in Opdyke DLJ (1978). Fragrance raw materials monographs. Methyl acetoacetate. Food Cosmet Toxicol 16: 815, and Kligman AM (1966). The identification of contact allergens by human assay. III. The maximization test. A procedure for screening and rating contact sensitizers. J Invest Derm 47: 393. Cited in Opdyke DLJ (1978). Fragrance raw materials monographs. Methyl acetoacetate. Food Cosmet Toxicol 16: 815.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Methyl acetoacetate
EC Number:
203-299-8
EC Name:
Methyl acetoacetate
Cas Number:
105-45-3
Molecular formula:
C5H8O3
IUPAC Name:
methyl 3-oxobutanoate
Details on test material:
- Name of test material (as cited in study report): methyl acetoacetate, RIFM no. 76-192
- Analytical purity: no data

Method

Type of population:
not specified
Ethical approval:
not specified
Subjects:
- Number of subjects exposed: 25
- no further data
Controls:
No data
Route of administration:
dermal
Details on study design:
TYPE OF TEST(S) USED: maximization test

ADMINISTRATION
- Type of application: occlusive / semiocclusive /other: no data
- Vehicle / solvent: petrolatum
- Concentrations: 8 %
- Volume applied: no data
- Testing/scoring schedule: no data
- Removal of test substance: no data

EXAMINATIONS
- Grading/Scoring system: no data
- Statistical analysis: no data

Results and discussion

Results of examinations:
The maximization test performed with 25 volunteers produced no sensitization reactions.

Applicant's summary and conclusion