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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Only secondary literature (review)

Data source

Referenceopen allclose all

Reference Type:
review article or handbook
Title:
Unnamed
Year:
1978
Report date:
1978
Reference Type:
other: type unknown
Title:
No information
Author:
Epstein WL
Year:
1976
Bibliographic source:
Report to RIFM, 27 August; cited in Opdyke (1978)
Report date:
1976
Reference Type:
publication
Title:
Unnamed
Year:
1975
Report date:
1975

Materials and methods

Type of sensitisation studied:
skin
Study type:
study with volunteers
Principles of method if other than guideline:
Maximization test according to Kligman and Epstein (1975, reference 3)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Isobutyl acetate
EC Number:
203-745-1
EC Name:
Isobutyl acetate
Cas Number:
110-19-0
Molecular formula:
C6H12O2
IUPAC Name:
isobutyl acetate
Details on test material:
- Name of test material (as cited in study report): isobutyl acetate
- no further information on test substance

Method

Type of population:
not specified
Subjects:
- Number of subjects exposed: 28
- Sex: no data
- no further details
Controls:
no data
Route of administration:
dermal
Details on study design:
- concentration: 2% test substance in petrolatum

Results and discussion

Results of examinations:
No sensitization reaction was produced by the test substance (2% in petrolatum) in the test system used.

Applicant's summary and conclusion

Conclusions:
In a maximization test according to Kligman (Kligman and Epstein 1975) on 28 human volunteers, using a 2% isobutyl acetate solution in petrolatum, no skin sensitization reaction was produced.