sym-Diphenylthiourea

Title: sym-Diphenylthiourea
CAS Registry Number: 102-08-9
CAS Name: N,N¢-Diphenylthiourea
Additional Names: thiocarbanilide; sulfocarbanilide
Molecular Formula: C13H12N2S
Molecular Weight: 228.31
Percent Composition: C 68.39%, H 5.30%, N 12.27%, S 14.04%
Line Formula: C6H5NHCSNHC6H5
Literature References: Prepn from aniline and carbon disulfide: Fry, J. Am. Chem. Soc. 35, 1539 (1913); Stasse, US 2435295 (1948 to Allied Chem. & Dye); from potassium ethylxanthate and aniline: Aravindakshan et al., Indian J. Chem. 1(9), 395 (1963). Physical properties and toxicity data: P. J. Hanzlik, A. Irvine, J. Pharmacol. Exp. Ther. 17, 349 (1921).
Properties: White crystalline solid, mp 153-154°. d 1.32. Distinct bitter taste. Practically insol in water. Sol in alcohol, ether, chloroform. MLD orally in rabbits: 1.5 g/kg (Hanzlik, Irvine).
Melting point: mp 153-154°
Density: d 1.32
Toxicity data: MLD orally in rabbits: 1.5 g/kg (Hanzlik, Irvine)
Use: Vulcanizing accelerator; sulfur dyes.
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