Hygroscopic, amorphous flakes from 95% alc. After drying at 118 degree over P2O5 in vacuo sinters at 220 degree. Properties: Hygroscopic, amorphous flakes from 95% alc. After drying at 118° over P2O5 in vacuo sinters at 220°. mp ~260° (in vacuo). Sol in water. Not pptd by ether from water (difference from digitonin); amorphous ppt with amyl alcohol. Tigogenin
