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Administrative data

Endpoint:
skin sensitisation: in vivo (non-LLNA)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other:
Title:
Unnamed
Year:
2011

Materials and methods

Test guideline
Guideline:
other: Maximization Test according to Magnusson and Kligman (J. Invest. Dermatol. 52, 268-276, 1969) and recommended in the OECD-guideline Nr. 406, 12.5.81
GLP compliance:
not specified
Remarks:
Not provided in information from NONS file (Corrigendum INQ-C-0000001810-82-01), as per inquiry number 06-0000020885-62-0000, permission to refer granted by ECHA.
Type of study:
guinea pig maximisation test

Test material

Constituent 1
Chemical structure
Reference substance name:
-
EC Number:
401-540-3
EC Name:
-
Cas Number:
84632-65-5
Molecular formula:
C18H10Cl2N2O2
IUPAC Name:
3,6-bis(4-chlorophenyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione

In vivo test system

Test animals

Species:
guinea pig
Strain:
other: Pirbright White Strain
Sex:
male/female

Study design: in vivo (non-LLNA)

Induction
Concentration / amount:
ConcentratIon in the induction period:
1% in sesame oil and adjuvant mixture(intradermal application);
10% in vaseline(epidermal application).

Concentration in the challenge period:
0.3% in vaseline.
Challenge
Concentration / amount:
ConcentratIon in the induction period:
1% in sesame oil and adjuvant mixture(intradermal application);
10% in vaseline(epidermal application).

Concentration in the challenge period:
0.3% in vaseline.
No. of animals per dose:
20 (10 males and 10 females)

Results and discussion

In vivo (non-LLNA)

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

Applicant's summary and conclusion

Interpretation of results:
not sensitising
Remarks:
Migrated information