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Diss Factsheets

Toxicological information

Skin sensitisation

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Administrative data

Endpoint:
skin sensitisation: in vivo (non-LLNA)
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
Data from peer reviewed journal

Data source

Reference
Reference Type:
publication
Title:
Final report of the Cosmetic Ingredient Review Expert Panel on the safety assessment of dicarboxylic acids, salts, and esters.
Author:
Fiume MM, Heldreth B, Eldreth H, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD, Liebler D, Marks JG, Shank RC, Slaga TJ, Snyder PW, Andersen FA
Year:
2012
Bibliographic source:
International Journal of Toxicology, Vol 31, Issue 4_suppl, pp. 5S - 76S, 2012

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
other: As mentioned below
Principles of method if other than guideline:
Skin sensitization study of Diisopropyl sebacate was performed on human by patch test.
GLP compliance:
not specified
Type of study:
patch test
Justification for non-LLNA method:
No data available

Test material

Constituent 1
Chemical structure
Reference substance name:
Diisopropyl sebacate
EC Number:
231-306-4
EC Name:
Diisopropyl sebacate
Cas Number:
7491-02-3
Molecular formula:
C16H30O4
IUPAC Name:
diisopropyl sebacate
Test material form:
liquid
Details on test material:
Name of test material (as cited in study report):Diisopropyl sebacate
Molecular formula : C16H30O4
Molecular weight: 286.411 g/mol
Substance type: Organic
Physical State: Liquid
Specific details on test material used for the study:
Name of test material (as cited in study report):Diisopropyl sebacate
Molecular formula : C16H30O4
Molecular weight: 286.411 g/mol
Substance type: Organic
Physical State: Liquid

In vivo test system

Test animals

Species:
other: Human
Strain:
not specified
Sex:
not specified
Details on test animals and environmental conditions:
No data available

Study design: in vivo (non-LLNA)

Induction
Route:
epicutaneous, occlusive
Vehicle:
unchanged (no vehicle)
Concentration / amount:
100%
Challenge
No.:
#1
Route:
epicutaneous, occlusive
Vehicle:
unchanged (no vehicle)
Concentration / amount:
100%
No. of animals per dose:
107
Details on study design:
Details on study design
RANGE FINDING TESTS:

MAIN STUDY
A. INDUCTION EXPOSURE
- No. of exposures:3
- Exposure period:24hr
- Test groups:107
- Control group: no data
- Site:2cm x2cm area of skin on right upper arm
- Frequency of applications: During weeks 1,2 and 3
- Duration:4 weeks
- Concentrations:100%

B. CHALLENGE EXPOSURE
- No. of exposures:1
- Day(s) of challenge: During 6 weeks
- Exposure period:24hr
- Test groups:105
- Control group: No data
- Site: No data
- Concentrations:100%
- Evaluation (hr after challenge):After 24 hr
Challenge controls:
No data available
Positive control substance(s):
not specified

Study design: in vivo (LLNA)

Statistics:
No data available

Results and discussion

Positive control results:
No data available

In vivo (non-LLNA)

Results
Reading:
1st reading
Hours after challenge:
24
Group:
test chemical
Dose level:
100%
No. with + reactions:
0
Total no. in group:
105
Clinical observations:
No skin sensitization reaction was noted
Remarks on result:
no indication of skin sensitisation

Applicant's summary and conclusion

Interpretation of results:
other: Not sensitizing
Conclusions:
The Diisopropyl sebacate (7491-02-3) was considered to be not sensitizing to humans.
Executive summary:

In skin sensitization study, 107 volunteers were tested by patch test at a concentration of 100 % of Diisopropyl sebacate. In induction phase test material applied for 24hr on 2cm x2cm area of skin on right upper arm of each participant as patch.Three induction application given during 1to 4 weeks. After each induction application test site was examined immediately after removal of patch. No clinically significant effect observed during this phase.During week 6, challenge application given to 105 participants and observed for skin reaction. As No skin sensitization reaction was noted therefore, the Diisopropyl sebacate (7491-02-3) was considered to be not sensitizing to humans.