Skip Navigation
ChemIDplus A TOXNET DATABASE LiteBrowseAdvanced

Substance Name: Thioacetamide
RN: 62-55-5
UNII: 075T165X8M
InChIKey: YUKQRDCYNOVPGJ-UHFFFAOYSA-N

Note

  • A crystalline compound used as a laboratory reagent in place of HYDROGEN SULFIDE. It is a potent hepatocarcinogen.

Molecular Formula

  • C2-H5-N-S

Molecular Weight

  • 75.1345
 

Classification Codes

Classification Codes

  • Mutation Data
  • Reproductive Effect
  • Tumor Data

Superlist Classification Codes

  • Overall Carcinogenic Evaluation: Group 2B
  • Reasonably Anticipated to be a Carcinogen
  • Reportable Quantity (RQ) = 10 lb

Names and Synonyms

Name of Substance

  • Thioacetamide

MeSH Heading

  • Thioacetamide

Synonyms

  • Acetamide, thio-
  • Acetic acid, thiono-, amide
  • Acetimidic acid, thio-
  • Acetothioamide
  • AI3-17220
  • CCRIS 584
  • EC 200-541-4
  • EINECS 200-541-4
  • Ethanethioamide
  • HSDB 1318
  • NSC 2120
  • RCRA waste number U218
  • TAA
  • Thiacetamide
  • Thioacetamide
  • Thioacetimidic acid
  • UNII-075T165X8M
  • USAF CB-21
  • USAF EK-1719

Systematic Names

  • Acetamide, thio-
  • Acetamide, thio- (VAN) (8CI)
  • Ethanethioamide
  • Thioacetamide

Superlist Names

  • Ethanethioamide
  • RCRA waste no. U218
  • Thioacetamide

Registry Numbers

CAS Registry Number

  • 62-55-5

FDA UNII

  • 075T165X8M

Other Registry Number

  • 1482-80-0

System Generated Number

  • 0000062555

Structure Descriptors

InChI

1S/C2H5NS/c1-2(3)4/h1H3,(H2,3,4)

InChIKey

YUKQRDCYNOVPGJ-UHFFFAOYSA-N

Smiles

C(=S)(C)N

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 300mg/kg (300mg/kg)   National Technical Information Service. Vol. AD277-689,
mouse LDLo subcutaneous 2gm/kg (2000mg/kg)   Archives Internationales de Pharmacodynamie et de Therapie. Vol. 12, Pg. 447, 1904.
rat LD subcutaneous > 200mg/kg (200mg/kg) LIVER: "HEPATITIS (HEPATOCELLULAR NECROSIS), ZONAL"

LIVER: OTHER CHANGES
Journal of Gastroenterology. Vol. 29, Pg. 293, 1994.
rat LD50 oral 301mg/kg (301mg/kg)   Toxicology and Applied Pharmacology. Vol. 27, Pg. 380, 1974.
rat LDLo intraperitoneal 600mg/kg (600mg/kg) LIVER: "HEPATITIS (HEPATOCELLULAR NECROSIS), ZONAL"

LIVER: OTHER CHANGES
Toxicological Sciences. Vol. 45, Pg. 233, 1998.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 115.5 deg C   EXP
pKa Dissociation Constant 13.4 (none) 25 EXP
log P (octanol-water) -0.26 (none)   EXP
Water Solubility 1.63E+05 mg/L 25 EXP
Vapor Pressure 15.2 mm Hg 25 EST
Henry's Law Constant 6.44E-06 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 2.12E-11 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.