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139-94-6

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Basic Information
CAS No.: 139-94-6
Name: 1-ethyl-3-(5-nitrothiazol-2-yl)urea
Molecular Structure:
Molecular Structure of 139-94-6 (1-ethyl-3-(5-nitrothiazol-2-yl)urea)
Formula: C6H8 N4 O3 S
Molecular Weight: 216.221
Synonyms: Urea,1-ethyl-3-(5-nitro-2-thiazolyl)- (6CI,8CI);1-Ethyl-3-(5-nitro-2-thiazolyl)urea; Ba 32476; Hepzide; Hepzide 30; Nithiazid;Nithiazide
Density: 1.518g/cm3
Melting Point: 228°C (rough estimate)
Boiling Point: °Cat760mmHg
Flash Point: °C
Safety: Suspected carcinogen with experimental carcinogenic data. Moderately toxic by ingestion. Mutation data reported. When heated to decomposition it emits very toxic fumes of NOx and POx.
PSA: 128.08000
LogP: 2.17980
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Toxicity Data With Reference

1.   

mmo-sat 75 µg/plate

    ENMUDM    Environmental Mutagenesis. 5 (Suppl 1)(1983),3.
2.   

mma-sat 75 µg/plate

    ENMUDM    Environmental Mutagenesis. 5 (Suppl 1)(1983),3.
3.   

orl-mus LD50:2150 mg/kg

    NCILB*    Progress Report for Contract No. NIH-NCI-E-C-72-3252, Submitted to the National Cancer Institute by Litton Bionetics, Inc. (Bethesda, MD) NIH-NCI-E-C-72-3252 ,1973.

Consensus Reports

IARC Cancer Review: Group 3 IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 (1987),p. 56.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Limited Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 31 (1983),p. 179.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . NCI Carcinogenesis Bioassay (feed); Clear Evidence: mouse, rat NCITR*    National Cancer Institute Carcinogenesis Technical Report Series. (Bethesda, MD 20014) No. NCI-CG-TR-146 ,1979. .

Safety Profile

Suspected carcinogen with experimental carcinogenic data. Moderately toxic by ingestion. Mutation data reported. When heated to decomposition it emits very toxic fumes of NOx and POx.