d4 C29 ααα (20R)-Ethylcholestane d4 C29 ??? (20R)-Ethylcholestane3
d4 C29 ααα (20R)-Ethylcholestane d4 C29 ??? (20R)-Ethylcholestane4
d2 C29 ααα (20R)-Ethylcholestane d2 C29 ??? (20R)-Ethylcholestane
d2 C29 ααα (20R)-Ethylcholestane d2 C29 ??? (20R)-Ethylcholestane2
d2 C29 ααα (20R)-Ethylcholestane d2 C29 ??? (20R)-Ethylcholestane3
1,1,3,5-Tetramethyl-3-neopentylindan 3-(2,2-二甲基丙基)-2,3-二氢-1,1,3,5-四甲基-1H-茚
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