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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: reported in brief but sufficient information for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1977
Report date:
1977

Materials and methods

Principles of method if other than guideline:
500 mg of the testsubstance were applied to the inner surface of one ear of each of 2 New Zealand White rabbits held in place by plaster for 24 hours. After termination of the exposure the ear was cleaned with water, soap and oil and the animals were observed for further 7 days
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
N,N'-dimethyldiphenylthiuram disulphide
EC Number:
234-196-6
EC Name:
N,N'-dimethyldiphenylthiuram disulphide
Cas Number:
10591-84-1
Molecular formula:
C16H16N2S4
IUPAC Name:
N-methyl-N-phenyl{[methyl(phenyl)carbamothioyl]disulfanyl}carbothioamide
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
98.1 %

Test animals

Species:
rabbit
Strain:
New Zealand White
Details on test animals or test system and environmental conditions:
body weight at study inititiation: 3-4 kg
male and female
housing: individually

Test system

Type of coverage:
semiocclusive
Preparation of test site:
not specified
Vehicle:
unchanged (no vehicle)
Controls:
other: the other ear (inner surface)
Amount / concentration applied:
500 mg
Duration of treatment / exposure:
24 hours
Observation period:
7 days
Number of animals:
2
Details on study design:
500 mg of the testsubstance were applied to the inner surface of one ear of each of 2 New Zealand White rabbits held in place by plaster for 24 hours. After termination of the exposure the ear was cleaned with water, soap and oil and the animals were observed for further 7 days

Results and discussion

In vivo

Results
Irritation parameter:
overall irritation score
Basis:
mean
Time point:
other: at the end of the observation period
Score:
ca. 0
Reversibility:
other: the substance caused no irritation
Irritant / corrosive response data:
the substance caused no irritation
Other effects:
no data

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information
Executive summary:

500 mg of the testsubstance were applied to the inner surface of one ear of each of 2 New Zealand White rabbits and held in place by plaster for 24 hours. After termination of the exposure the ear was cleaned with water, soap and oil and the animals were observed for further 7 days. Vulcacit I caused no irritation (Mihail 1977).