The crystal and molecular structure of fenspiride, a bronchodilator and anti-inflammatory drug, are reported. Fenspiride crystallizes in the monoclinic system, with two crystallographically independent molecules in the general position of the space group P21/n (No. 14) and Z = 8. Rietveld refined unit cell parameters are a = 11.52013(8) Å, b = 5.614091(31) Å, c = 44.1567(4) Å, α = 90°, β = 93.0885(6)°, γ = 90°, and V = 2851.69(4) Å3.

中文翻译：

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芬司匹利的晶体和分子结构，C15H20N2O2

报道了一种支气管扩张剂和抗炎药芬司匹利的晶体和分子结构。芬司匹利在单斜晶系中结晶，两个晶体学上独立的分子位于空间群的一般位置磷21/n（第 14 号）和Z= 8. Rietveld 细化晶胞参数为一种= 11.52013(8) 埃，b= 5.614091(31) 埃，C= 44.1567(4) 埃，α= 90°，β= 93.0885(6)°,γ= 90°，并且五= 2851.69(4) Å3.