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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
1965
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: non GLP, number of participants only 50, test concentrations low. Limited amount of detail.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1965
Report date:
1965

Materials and methods

Type of sensitisation studied:
skin
Study type:
study with volunteers
Principles of method if other than guideline:
Patch tests were conducted on fifty human subjects according to the method of Shelanski and Shelanski (Procedures of the Toilet Goods Association, Number 19, 1953)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate)
EC Number:
229-722-6
EC Name:
Pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate)
Cas Number:
6683-19-8
Molecular formula:
C73H108O12
IUPAC Name:
3-{[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl]oxy}-2,2-bis({[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl]oxy}methyl)propyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate
Details on test material:
- Substance type: Organic

Method

Type of population:
general
Subjects:
50 volunteers
Route of administration:
dermal
Details on study design:
TYPE OF TEST(S) USED: patch test (epicutaneous test)

ADMINISTRATION
- Type of application: occlusive
- Vehicle / solvent: dimethyl phthalate
- Concentrations: 0.5% w/v

Results and discussion

Results of examinations:
None of the fifty subjects reacted to any of the 15 applications or to the challenge application.

Applicant's summary and conclusion

Conclusions:
From the results obtained in this study on the fifty subjects used, the test item tested as a 0.5% w/v solution in dimethyl phthalate, was found to be neither a primary; irritant nor a fatiguing agent to any of the subjects tested. This material did not produce sensitization in any of the subjects tested.