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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: Peer-reviewed data, available as short summary from secondary source, reliability according to HPV/ICCA SIDS.

Data source

Referenceopen allclose all

Reference Type:
secondary source
Title:
Report on human maximization studies. Report to RIFM, unpublished.
Author:
Epstein WL
Year:
1981
Bibliographic source:
RIFM-FEMA Database, Location 1792
Reference Type:
secondary source
Title:
Report on human maximization studies. Report to RIFM, unpublished.
Author:
Epstein WL
Year:
1981
Bibliographic source:
ICCA HPVC Programme IUCLID SIDS

Materials and methods

Type of sensitisation studied:
skin
Study type:
study with volunteers
Principles of method if other than guideline:
Human maximization test, procedure modified after JID 47: 393-409, 1966.
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
3,7,11,15-tetramethylhexadec-1-en-3-ol
EC Number:
208-008-8
EC Name:
3,7,11,15-tetramethylhexadec-1-en-3-ol
Cas Number:
505-32-8
Molecular formula:
C20H40O
IUPAC Name:
3,7,11,15-tetramethylhexadec-1-en-3-ol
Details on test material:
- Name of test material (as cited in study report): isophytol
- Physical state: not reported
- Analytical purity: not reported

Method

Type of population:
general
Ethical approval:
not specified
Subjects:
- Number of subjects exposed: 27
- Sex: male and female
Controls:
Additional challenge site with vehicle only.
Route of administration:
dermal
Details on study design:
TYPE OF TEST(S) USED: patch test (epicutaneous test)

ADMINISTRATION
- Type of application: occlusive
- Description of patch: not further specified
- Vehicle / solvent: petrolatum
- Concentrations: 10 %
- Volume applied: not reported
- Testing/scoring schedule: 5x induction for 48-hour periods on alternate days and challenge for 48 hours after a 10- to 14-day treatment-free interval
- Removal of test substance: no

Results and discussion

Any other information on results incl. tables

In this study approximately one-third of the subjects were slightly irritated by the SLS pretreatment. No other significant reactions were seen.

The test substance produced no reactions that were considered either irritant or allergic in the 27 subjects tested.

Applicant's summary and conclusion