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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Sensitisation data (human)

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Administrative data

Endpoint:
sensitisation data (humans)
Type of information:
experimental study
Adequacy of study:
disregarded due to major methodological deficiencies
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
significant methodological deficiencies
Remarks:
substance was allowed to volatize from the patch for 15min prior to application. Potentially hardly any test substance applied.

Data source

Reference
Reference Type:
publication
Title:
Submission of unpublished data by CTFA. Repeat insult patch test on amyl and Isoamyl Acetate
Author:
CTFA
Year:
1987
Bibliographic source:
cited in: Ibanez, P., Final Report on the Safety Assessment of Amyl Acetate and Isoamyl Acetate, J. Americ. Coll. Toxicol., 7(6), 705-719, 1988

Materials and methods

Type of sensitisation studied:
skin
Study type:
study with volunteers
Principles of method if other than guideline:
Repeat insult patch test with 197 subjects.
GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
Reference substance 001
Details on test material:
no data

Method

Type of population:
not specified
Subjects:
- Number of subjects exposed:
- Sex: 211 male and female subjects, a total of 197 subjects completed the study
- Other:
Controls:
A vehicle control, 75% ethanol and 25% diethyl phthalate, was also included in the testing program.
Route of administration:
dermal
Details on study design:
TYPE OF TEST(S) USED: patch test (epicutaneous test)


ADMINISTRATION
- Description of patch: The test material, 0 .3 ml, was applied to a Webril patch and allowed to volatilize for 15 minutes before applying the patch to the skin site.
- Concentrations: 20% solution
- Volume applied: 0.3 ml
- Testing/scoring schedule: The sites were evaluated at 48 and 96 h after application throughout the treatment period.Following a 10-15 day nontreatment period, the subjects were given a challenge patch using the same dose and contact period as used during the induction phase of the study.
- Removal of test substance: after 24 h (the sites were evaluated and fresh patches applied three times per week for 3 weeks)

Results and discussion

Results of examinations:
No evidence of delayed-contact hypersensitivity was observed, and no adverse reactions were observed during the entire exposure period to amyl acetate.

Applicant's summary and conclusion