中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (20R)-2α,3α-isopropylidenedioxy-20-hydroxy-5α-pregnan-6-one | 144699-15-0 | C24H38O4 | 390.563 |
Pregnane analogues of brassinolide and castasterone have been prepared which have an ester function with five carbon atoms at the 20 position. When tested by the bean second internode bioassay, the most efficient substance is