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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Skin sensitisation

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Administrative data

Endpoint:
skin sensitisation: in chemico
Type of information:
experimental study
Adequacy of study:
key study
Study period:
08/02/2018 - 26/06/2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 442C (In Chemico Skin Sensitisation: Direct Peptide Reactivity Assay (DPRA))
Deviations:
no
GLP compliance:
yes
Type of study:
direct peptide reactivity assay (DPRA)
Justification for non-LLNA method:
non animal method preferred

Test material

Constituent 1
Chemical structure
Reference substance name:
Heptyl undec-10-enoate
EC Number:
268-850-7
EC Name:
Heptyl undec-10-enoate
Cas Number:
68141-27-5
Molecular formula:
C18H34O2
IUPAC Name:
heptyl undec-10-enoate
Test material form:
liquid

In chemico test system

Details on the study design:
synthetic peptides containing cysteine or lysine were reacted with the test articles for 24hrs. After the incubation period, the extent of peptide depletion was analyzed using High Performance Liquid Chromatography (HPLC) coupled with UV spectrometric detection.

Results and discussion

Positive control results:
cinnamic aldehyde:
mean peptide depletion (cysteine): 70.76
mean peptide depletion (lysine): 58.85

In vitro / in chemico

Results
Parameter:
other: mean peptide depletion of cysteine and lysine
Value:
1.53
Vehicle controls validity:
not applicable
Negative controls validity:
not applicable
Positive controls validity:
valid
Remarks on result:
no indication of skin sensitisation
Remarks:
minimal reactivity

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
according to DPRA test performed on heptyl undecylenate, substance is not a skin sensitizer.