Properties: Pale yellow prisms, mp 169-170° (Mouzin); also reported as mp 165° (Allais, Meier). Practically insol in water. Slightly sol in abs alcohol, acetone, ether, benzene, chloroform; sol in dil aq alkalies and acids. Soly at 30℃ (g/100 ml): hexane <0.001, water 0.001, chloroform 0.260, acetone 0.297, ethanol 0.700, 0.1N HCl 1.295. pKa (20℃) 7.2. uv max (methanol): 356, 225, 255 nm; (0.1N HCl) 342, 223, 252 nm. LD50 orally in mice: 2 g/kg (Allais, Meier).
Melting point: mp 169-170° (Mouzin); mp 165° (Allais, Meier)
pKa: pKa (20℃) 7.2
Absorption maximum: uv max (methanol): 356, 225, 255 nm; (0.1N HCl) 342, 223, 252 nm
Toxicity data: LD50 orally in mice: 2 g/kg (Allais, Meier)
Therap-Cat: Analgesic.
Keywords: Analgesic (Non-Narcotic).
Status: This monograph has been retired and is no longer subject to revision or update.
产品链接: 3820-67-5››