Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
skin sensitisation
Remarks:
other: no data
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
1993
Report date:
1993

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: EC B. 6 (Magnusson and Kligman)
GLP compliance:
yes
Type of study:
other: no data

Test material

Constituent 1
Chemical structure
Reference substance name:
β-methyl-3-(1-methylethyl)benzenepropanal
EC Number:
412-050-4
EC Name:
β-methyl-3-(1-methylethyl)benzenepropanal
Cas Number:
125109-85-5
Molecular formula:
C13H18O
IUPAC Name:
3-[3-(propan-2-yl)phenyl]butanal

In vivo test system

Test animals

Species:
guinea pig
Strain:
Himalayan

Study design: in vivo (LLNA)

Concentration:
Concentration of test material and vehicle used at induction:
a) Intradermal: 0.5 % in ethanol
b) Epidermal: 50% in ethanol
Concentration of test material and vehicle use for each challenge:
a) 30% in ethanol
No. of animals per dose:
Number of animals in test group:20
Number of animals in negative control group: 10

Results and discussion

In vivo (non-LLNA)

Resultsopen allclose all
Reading:
1st reading
Hours after challenge:
24
Group:
test chemical
Dose level:
30%
No. with + reactions:
1
Total no. in group:
20
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: test group. Dose level: 30%. No with. + reactions: 1.0. Total no. in groups: 20.0.
Reading:
2nd reading
Hours after challenge:
48
Group:
test chemical
Dose level:
30%
No. with + reactions:
0
Total no. in group:
20
Remarks on result:
other: Reading: 2nd reading. . Hours after challenge: 48.0. Group: test group. Dose level: 30%. No with. + reactions: 0.0. Total no. in groups: 20.0.
Reading:
1st reading
Hours after challenge:
24
Group:
negative control
Dose level:
30%
No. with + reactions:
0
Total no. in group:
10
Remarks on result:
other: Reading: 1st reading. . Hours after challenge: 24.0. Group: negative control. Dose level: 30%. No with. + reactions: 0.0. Total no. in groups: 10.0.
Reading:
2nd reading
Hours after challenge:
48
Group:
negative control
Dose level:
30%
No. with + reactions:
0
Total no. in group:
10
Remarks on result:
other: Reading: 2nd reading. . Hours after challenge: 48.0. Group: negative control. Dose level: 30%. No with. + reactions: 0.0. Total no. in groups: 10.0.

In vivo (LLNA)

Results
Parameter:
other: disintegrations per minute (DPM)
Remarks on result:
other: Signs of irritation during induction: No signs correlated with the test article. Evidence of sensitization of each challange concentration: 1 of 20 animals

Applicant's summary and conclusion

Interpretation of results:
no data
Remarks:
Migrated information not classified