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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
supporting study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GCP and Colipa study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1998
Report date:
1998

Materials and methods

Type of sensitisation studied:
skin
Study type:
study with volunteers
Test guideline
Qualifier:
according to guideline
Guideline:
other: COLIPA
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Methyl palmitate
EC Number:
203-966-3
EC Name:
Methyl palmitate
Cas Number:
112-39-0
Molecular formula:
C17H34O2
IUPAC Name:
methyl palmitate

Method

Type of population:
general
Ethical approval:
not specified
Subjects:
- Number of subjects exposed: 20- Sex: male and female- Age: no age limit
Controls:
No challenge controlPositive control substances: Texapon N28, Sodium-dodecylsulfat, cosmetic alcohol and Aqua demin, phys. NaCl and paraffinoil
Route of administration:
dermal
Details on study design:
TYPE OF TEST USED: patch test (epicutaneous test)ADMINISTRATION- Type of application: occlusive - Description of patch: Finn Chamber on Scanpor, 12mm- Volume applied: 70µL- Testing/scoring schedule: 6, 24, 48 and 72h - Removal of test substance: 24hEXAMINATIONS- Grading/Scoring system: Frosch, Kligman, 1979- Undiluted test substance

Results and discussion

Results of examinations:
NO. OF PERSONS WITH/OUT REACTIONS COMPARED TO STUDY POPULATION- Number of subjects without reactions: 16/20- Number of subjects with slight irritating reactions: 4/20- Number of subjects with slight eschar reactions: 5/20OTHER RESULTS:Erythema Score: 0.21Combined score (Erythema, edema, eschar, etc.): 0.47Positive control results: Mean value over all patients: Erythema: 0.11, Erythema, Edema, Scaling, scissure effects: 0.11

Applicant's summary and conclusion

Conclusions:
The test substance shows good skin compatibility and no skin sensitization potential.