| abstract |
PURPOSE: Physiologically active substance esterastine. Characteristics thereof are as follows: white powdery neutral substance; m.p. 90-95°C; easily soluble in pyridine, methanol, etc., slightly soluble in water, petroleum ether, etc.; specific rotation [α] 2 D 0 +11° (C/, chloroform); molecular weight 506; elementary analysis, C 67.04%, H 9.21%, N 5.56%, O 17.90%; UV spectrum (in methanol) shows an absorption peak at λ max 230nm; IR spectrum shows specific absorption bands at 3470, 3350cm -1 , etc n COPYRIGHT: (C)1978,JPO&Japio |