Toxicity of isonicotinic acid

  title={Toxicity of isonicotinic acid},
  author={G. V. Tsarichenko and V. I. Bobrov and M. V. Smarkov},
  journal={Pharmaceutical Chemistry Journal},
Cuscohygrine Bis(methyl benzenesulfonate) (l,3-Bis(N,N-dimethyl-2-pyrrolidinium)propanone dibenzenesulfonate) (III). A 1.17-g portion (0.93 ml) of methyl benzenesulfonate is added with stirring to 0.51 g of compound I dissolved in 15.6 ml of acetone. After 25 h the precipitate formed on standing was filtered. Yield of III 1.21 g (94.0%). It is a yellowishwhite, fine-crystalline powder with a characteristic odor, mp 158-160~ and after reprecipitation from boiling acetone and water, mp 180-181… Expand
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