Product Name

  • Name

    3-benzothiazol-2-yl-1-methyl-1-nitroso-urea

  • EINECS
  • CAS No. 51542-33-7
  • Density 1.53g/cm3
  • Solubility
  • Melting Point
  • Formula C9H8 N4 O2 S
  • Boiling Point °Cat760mmHg
  • Molecular Weight 220.27
  • Flash Point °C
  • Transport Information
  • Appearance
  • Safety Moderately toxic by ingestion. Questionable carcinogen with experimental carcinogenic and tumorigenic data. Mutation data reported. Many N-nitroso compounds are carcinogens. When heated to decomposition it emits very toxic fumes of SOx and NOx. See also N-NITROSO COMPOUNDS.
  • Risk Codes
  • Molecular Structure Molecular Structure of 51542-33-7 (3-benzothiazol-2-yl-1-methyl-1-nitroso-urea)
  • Hazard Symbols
  • Synonyms N-Methyl-N-nitroso-N'-(2-benzothiazolyl)urea;N-Nitrosobenzthiazuron; Nitrosobenzthiazuron
  • PSA 106.39000
  • LogP 2.45500

N-nitroso-n-methyl-n'-(2-benzothi-azolyl)urea Chemical Properties

IUPAC Name: 3-(1,3-benzothiazol-2-yl)-1-methyl-1-nitrosourea 
Synonyms of N-nitroso-n-methyl-n'-(2-benzothi-azolyl)urea (CAS NO.51542-33-7): N-(2-Benzothiazolyl)-N'-methyl-N'-nitrosourea ; N-Methyl-N-nitroso-N'-(2-benzothiazolyl)-harnstoff ; N-Methyl-N-nitroso-N'-(2-benzothiazolyl)-harnstoff [German] ; N-Methyl-N-nitroso-N'-(2-benzothiazolyl)-urea ; N-Nitroso-N-methyl-N'-(2-benzothiazolyl)urea ; N-Nitrosobenzthiazuron ; Nitrosobenzthiazuron ;
CAS NO: 51542-33-7
Molecular Formula of N-nitroso-n-methyl-n'-(2-benzothi-azolyl)urea (CAS NO.51542-33-7): C5H10D2N2O 
Molecular Weight: 118.1739  
H bond acceptors: 6
H bond donors: 1
Freely Rotating Bonds: 1
Polar Surface Area: 94.11 Å2
Index of Refraction: 1.73
Molar Refractivity: 61.37 cm3
Molar Volume: 153.6 cm3
Surface Tension: 66.6 dyne/cm
Density of N-nitroso-n-methyl-n'-(2-benzothi-azolyl)urea (CAS NO.51542-33-7): 1.53 g/cm3
Molecular Structure:

N-nitroso-n-methyl-n'-(2-benzothi-azolyl)urea Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LDLo oral 500mg/kg (500mg/kg) GASTROINTESTINAL: OTHER CHANGES

KIDNEY, URETER, AND BLADDER: OTHER CHANGES

BLOOD: HEMORRHAGE		 Zeitschrift fuer Krebsforschung und Klinische Onkologie. Vol. 81, Pg. 217, 1974.

N-nitroso-n-methyl-n'-(2-benzothi-azolyl)urea Safety Profile

Moderately toxic by ingestion. Questionable carcinogen with experimental carcinogenic and tumorigenic data. Mutation data reported. Many N-nitroso compounds are carcinogens. When heated to decomposition it emits very toxic fumes of SOx and NOx. See also N-NITROSO COMPOUNDS.

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