Mepenzolate Bromide
Title: Mepenzolate Bromide
CAS Registry Number: 76-90-4
CAS Name: 3-[(Hydroxydiphenylacetyl)oxy]-1,1-dimethylpiperidinium bromide
Additional Names: N-methyl-3-piperidyl benzilate methyl bromide; N-methyl-3-piperidyl diphenylglycolate methobromide
Trademarks: Cantil (Aventis); Trancolon (Fujisawa)
Molecular Formula: C21H26BrNO3
Molecular Weight: 420.34
Percent Composition: C 60.00%, H 6.23%, Br 19.01%, N 3.33%, O 11.42%
Literature References: Anticholinergic. Prepn: Biel, US 2918408 (1959 to Lakeside Labs.). Prepn of base: Biel et al., J. Am. Chem. Soc. 77, 2250 (1955). Crystal structure: J. M. Leger et al., Acta Crystallogr. B35, 886 (1979). Toxicity data: E. I. Goldenthal, Toxicol. Appl. Pharmacol. 18, 185 (1971).
Properties: Crystals, mp 228-229° (dec). LD50 orally in rats: 742±47 mg/kg (Goldenthal).
Melting point: mp 228-229° (dec)
Toxicity data: LD50 orally in rats: 742±47 mg/kg (Goldenthal)
 
Derivative Type: Free base
CAS Registry Number: 25990-43-6
Properties: bp0.03 175-176°.
Boiling point: bp0.03 175-176°
 
NOTE: N-Methyl-3-piperidyl benzilate is a controlled substance (hallucinogen): 21 CFR, 1308.11.
Therap-Cat: Antispasmodic.
Keywords: Antispasmodic; Antimuscarinic.

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