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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Endpoint:
skin sensitisation: in vivo (non-LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
October 1981
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1981
Report date:
1981

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
Open Epicutaneous Test
GLP compliance:
no
Type of study:
open epicutaneous test
Justification for non-LLNA method:
Sufficient data was collected from the Open Epicutaneos Test in order to conclude on the skin sensitization potential of Neofolione.

Test material

Constituent 1
Chemical structure
Reference substance name:
(E)-methyl non-2-enoate
EC Number:
811-711-8
Cas Number:
14952-06-8
Molecular formula:
C10H18O2
IUPAC Name:
(E)-methyl non-2-enoate
Test material form:
liquid

In vivo test system

Test animals

Species:
guinea pig
Strain:
not specified
Sex:
not specified

Study design: in vivo (non-LLNA)

Induction
Route:
epicutaneous, open
Vehicle:
unchanged (no vehicle)
Concentration / amount:
0.1ml
Day(s)/duration:
20
Challenge
No.:
#1
Route:
epicutaneous, open
Vehicle:
unchanged (no vehicle)
Concentration / amount:
0.025ml
Day(s)/duration:
14
Adequacy of challenge:
highest non-irritant concentration
No. of animals per dose:
6-8
Details on study design:
To determine whether or not contact sensitization was induced, all groups of guinea pigs previously treated for 21 days for skin irritation testing, as well as 6 to 8 untreated or only with the vehicle pretreated controls are tested on days 21 and 35 on the contra-lateral flank with the test material at the minimal irritating and some lower concentrations.

Results and discussion

In vivo (non-LLNA)

Resultsopen allclose all
Key result
Reading:
1st reading
Hours after challenge:
504
Group:
test chemical
Dose level:
100%
No. with + reactions:
0
Total no. in group:
6
Clinical observations:
None
Key result
Reading:
2nd reading
Hours after challenge:
840
Group:
test chemical
Dose level:
100%
No. with + reactions:
0
Total no. in group:
6
Clinical observations:
None
Reading:
1st reading
Hours after challenge:
504
Group:
test chemical
Dose level:
30%
No. with + reactions:
0
Total no. in group:
6
Clinical observations:
None
Reading:
2nd reading
Hours after challenge:
840
Group:
test chemical
Dose level:
30%
No. with + reactions:
0
Total no. in group:
6
Clinical observations:
None

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Executive summary:

Under OET-conditions no sensitizing potential of Neofolione was detected.