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Toxicological information

Skin irritation / corrosion

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Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1992
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Comparable to guideline study, well documented and scientfically acceptable

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1992

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
Version / remarks:
EU 84/449/EWG, B.4
Deviations:
not specified
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
N,N'-diphenyl-N,N'-bis(3-methylphenyl)-(1,1'-diphenyl)-4,4'-diamine
EC Number:
413-810-8
EC Name:
N,N'-diphenyl-N,N'-bis(3-methylphenyl)-(1,1'-diphenyl)-4,4'-diamine
Cas Number:
65181-78-4
Molecular formula:
C38H32N2
IUPAC Name:
N4,N4'-bis(3-methylphenyl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine
Details on test material:
Name of test material: N4,N4'-Diphenyl-N4,N4'-di-m-tolyl-biphenyl-4,4'-diamine RXSS/91/404
Physical state: white powder

Test animals

Species:
rabbit
Strain:
New Zealand White

Test system

Type of coverage:
not specified
Preparation of test site:
shaved
Vehicle:
water
Controls:
no
Amount / concentration applied:
500 mg
Duration of treatment / exposure:
4 h
Observation period:
24h, 48h, 72 h
Number of animals:
3

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
erythema score
Basis:
animal #1
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
erythema score
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
erythema score
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
erythema score
Max. score:
0
Remarks on result:
other: Max. duration: d; Max. value at end of observation period: 0 (related to all animals)
Irritation parameter:
edema score
Basis:
animal #1
Remarks:
(mean score 1)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
edema score
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
edema score
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
edema score
Max. score:
0
Remarks on result:
other: Max. duration: d; Max. value at end of observation period: 0 (related to all animals)
Other effects:
No irritation during the study recognised.

Applicant's summary and conclusion

Interpretation of results:
other: not irritant
Remarks:
Criteria used for interpretation of results: EU