different between sapogenin vs diosgenin

English

sapo- +? -genin

sapogenin (plural sapogenins)

From Dios(corea) + genin, after German Diosgenin.

diosgenin (countable and uncountable, plural diosgenins)

(organic chemistry) A steroid sapogenin, obtained from certain yams, that has estrogenic activity.
- 1997, Roy Porter, The Greatest Benefit to Mankind, Folio Society 2016, p. 547:
  Obtaining adequate quantities of hormonal substances for research was impossible, however, until the early 1940s, when Russell E. Marker (1902–95) found that he could extract diosgenin from a wild yam growing in Mexico […]

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