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Diss Factsheets

Toxicological information

Acute Toxicity: dermal

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Administrative data

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: limited but acceptable documented study report which meets basic scientific principles

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
1973
Reference Type:
publication
Title:
Acute toxicologic evaluation of Santocure NS vulcanization accelerator
Author:
Randall, D.J. and Bannister, R.M.,
Year:
1990
Bibliographic source:
Acute Toxic. Data 1 (2), 104-105

Materials and methods

Principles of method if other than guideline:
A 40 % suspension of Santocure NS vulcanization accelerator (N-tert-butylbenzothiazole-2-sulphenamide) in corn oil was applied for 24 hours directly to the clipped, intact skin of 2 (1 male/1 female) New Zealand albino rabbits at a dose of 7940 mg/kg bw using semi-occlusive dressings.
GLP compliance:
no
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
N-tert-butylbenzothiazole-2-sulphenamide
EC Number:
202-409-1
EC Name:
N-tert-butylbenzothiazole-2-sulphenamide
Cas Number:
95-31-8
Molecular formula:
C11H14N2S2
IUPAC Name:
N-(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine
Details on test material:
Santocure NS

Test animals

Species:
rabbit
Strain:
New Zealand White
Sex:
male/female

Administration / exposure

Type of coverage:
semiocclusive
Vehicle:
corn oil
Duration of exposure:
24 h
Doses:
7940 mg/kg bw
No. of animals per sex per dose:
2 animals per dose
Control animals:
no

Results and discussion

Effect levels
Key result
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 7 940 mg/kg bw
Based on:
test mat.
Remarks on result:
other: Signs of intoxication: none
Mortality:
No mortalities occured.
Clinical signs:
other: None.
Gross pathology:
Viscera of animals appeared normal at sacrifice.

Any other information on results incl. tables

Mortality: 0/1 male, 0/1 female, combined 0/2

Signs of intoxication: none

Survivors: 14 day, viscera appeared normal.

No mortalities occured. The dermal LD50 for Santocure NS vulcanization accelerator was greater than 7940 mg/kg bw. No obvious clinical signs were observed. Viscera of animals appeared normal at sacrifice.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
LD50 > 7940 mg/kg bw (rabbit).
Executive summary:

A 40 % suspension of Santocure NS vulcanization accelerator (N-tert-butylbenzothiazole-2-sulphenamide) in corn oil was applied for 24 hours directly to the clipped, intact skin of 2 (1 male/1 female) New Zealand albino rabbits at a dose of 7940 mg/kg bw using semi-occlusive dressings.

No mortalities occured. No obvious clinical signs were observed. Viscera of animals appeared normal at sacrifice. The dermal LD50 for Santocure NS vulcanization accelerator was greater than 7940 mg/kg bw.