Phencarbamide
Title: Phencarbamide
CAS Registry Number: 3735-90-8
CAS Name: Diphenylcarbamothioic acid S-[2-(diethylamino)ethyl] ester
Additional Names: diphenylthiocarbamic acid S-[2-(diethylamino)ethyl] ester; S-[2-(diethylamino)ethyl] diphenylthiocarbamate; fencarbamide
Molecular Formula: C19H24N2OS
Molecular Weight: 328.47
Percent Composition: C 69.47%, H 7.36%, N 8.53%, O 4.87%, S 9.76%
Literature References: Anticholinergic. Prepd from diphenylcarbamyl chloride and b-diethylaminoethanethiol: GB 871774; K. H. Risse et al., US 3228949 (1961, 1966 both to Bayer). Pharmacology: W. Wirth et al., Arch. Int. Pharmacodyn. 151, 515 (1964); W. Wirth, R. Goesswald, ibid. 155, 393 (1965); B. R. Madan et al., ibid. 185, 53 (1970).
Properties: Crystals, mp 48-49°, bp0.01 120-126°. Practically insol in water. Freely sol in methanol, ether, chloroform. Sol in petr ether.
Melting point: mp 48-49°
Boiling point: bp0.01 120-126°
 
Derivative Type: Hydrochloride
CAS Registry Number: 58-13-9
Manufacturers' Codes: Ba-1355
Molecular Formula: C19H24N2OS.HCl
Molecular Weight: 364.93
Percent Composition: C 62.53%, H 6.91%, N 7.68%, O 4.38%, S 8.79%, Cl 9.72%
Properties: Crystals, mp 180-181°. Sol in water. LD50 orally in rats: 410 mg/kg (Wirth, Goesswald).
Melting point: mp 180-181°
Toxicity data: LD50 orally in rats: 410 mg/kg (Wirth, Goesswald)
 
Derivative Type: 1,5-Naphthalenedisulfonate
CAS Registry Number: 72017-58-4
Additional Names: Phencarbamide napadisilate
Molecular Formula: C19H24N2OS.C10H8O6S2
Molecular Weight: 616.77
Percent Composition: C 56.47%, H 5.23%, N 4.54%, O 18.16%, S 15.60%
Properties: LD50 orally in rats: 920 mg/kg (Wirth, Goesswald).
Toxicity data: LD50 orally in rats: 920 mg/kg (Wirth, Goesswald)
 
NOTE: Component of Gelosedine (Bayer) ; Spasmo-Dolviran (Bayer) .
Therap-Cat: Antispasmodic.
Keywords: Antispasmodic.
 
 
Status: This monograph has been retired and is no longer subject to revision or update.

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