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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:
key study
Study period:
1981
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method B.6 (Skin Sensitisation)
GLP compliance:
not specified
Type of study:
Freund's complete adjuvant test
Justification for non-LLNA method:
A FCAT guinea pigs study is available and reliable to determine the sensitization potential of the substance

Test material

1
Reference substance name:
Terpenes and Terpenoids, sinpine
EC Number:
272-842-9
EC Name:
Terpenes and Terpenoids, sinpine
Cas Number:
68917-63-5
IUPAC Name:
Reaction mass of 1-methyl-4-(propan-2-ylidene)cyclohex-1-ene and 1-methyl-4-(prop-1-en-2-yl)cyclohex-1-ene and 2,6,6-trimethylbicyclo[7.1.1]hept-2-ene and 1-isopropyl-4-methylcyclohexa-1,4-diene
Test material form:
not specified

In vivo test system

Test animals

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

Study design: in vivo (non-LLNA)

Induction
Route:
intradermal
Vehicle:
other: FCA
Concentration / amount:
5%
Day(s)/duration:
0, 4, 9 days
Adequacy of induction:
not specified
Challenge
Route:
epicutaneous, open
Vehicle:
not specified
Concentration / amount:
1, 3 and 10%
Day(s)/duration:
35 days
Adequacy of challenge:
highest non-irritant concentration
No. of animals per dose:
19
Challenge controls:
none
Positive control substance(s):
no

Results and discussion

Positive control results:
not relevant

In vivo (non-LLNA)

Resultsopen allclose all
Key result
Reading:
other: single challenge
Group:
test chemical
Dose level:
10%
No. with + reactions:
13
Total no. in group:
19
Clinical observations:
not reported
Remarks on result:
positive indication of skin sensitisation
Reading:
other: single challenge
Group:
test chemical
Dose level:
3%
No. with + reactions:
7
Total no. in group:
19
Clinical observations:
not reported
Remarks on result:
positive indication of skin sensitisation
Reading:
other: single challenge
Group:
test chemical
Dose level:
1%
No. with + reactions:
5
Total no. in group:
19
Clinical observations:
not reported
Remarks on result:
positive indication of skin sensitisation

Applicant's summary and conclusion

Interpretation of results:
Category 1 (skin sensitising) based on GHS criteria
Conclusions:
Challenge tests with the highest nonirritant and two lower concentrated alcoholic solutions of SinPine P three and five weeks after the initial intradermal injection are positive in 12/20, 8/20; 4/20 and 13/19, 7/19, 5/19 guinea pigs respectively.
Under conditions of the FCAT Sinine P is a moderate sensitizer for this animal species.