Fenspiride
Title: Fenspiride
CAS Registry Number: 5053-06-5
CAS Name: 8-(2-Phenylethyl)-1-oxa-3,8-diazaspiro[4.5]decan-2-one
Additional Names: decaspiride; DESP
Molecular Formula: C15H20N2O2
Molecular Weight: 260.33
Percent Composition: C 69.20%, H 7.74%, N 10.76%, O 12.29%
Literature References: a-Adrenergic blocker. Prepn: NL 6504602; Regnier et al., US 3399192 (1965 and 1968, both to Sci. Union et Cie-Soc. Franc. Recherche Méd.). Pharmacology: LeDouarec et al., Arzneim.-Forsch. 19, 1263 (1969); Duhault et al., ibid. 22, 1947 (1972).
 
Derivative Type: Hydrochloride
CAS Registry Number: 5053-08-7
Manufacturers' Codes: NAT-333; NDR-5998A
Trademarks: Decaspir (Pulitzer); Fluiden (Lafare); Pneumorel (Stroder); Respiride (Schiapparelli); Tegencia (Elmu); Viarespan (Servier)
Molecular Formula: C15H20N2O2.HCl
Molecular Weight: 296.79
Percent Composition: C 60.70%, H 7.13%, N 9.44%, O 10.78%, Cl 11.95%
Properties: Crystals decomp 232-233°. Soluble in water. LD50 i.v. in mice: 106 mg/kg; orally in rats: 437 mg/kg (LeDouarec).
Toxicity data: LD50 i.v. in mice: 106 mg/kg; orally in rats: 437 mg/kg (LeDouarec)
 
Therap-Cat: Bronchodilator.
Keywords: a-Adrenergic Blocker; Bronchodilator.

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