类固醇是一种具有生物活性的有机化合物，有四个环排列在特定的分子结构中。甾体具有两种主要的生物学功能:作为改变膜流动性的细胞膜的重要组成部分;作为信号分子。所有的类固醇都是从甾醇、羊毛甾醇(opisthokonts)或环芳烃醇(植物)的细胞中制造出来的。
(R)-4-((3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-Dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoic acid
(R)-4-((3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-二羟基-10,13-二甲基十六氢-1H-环戊基[a]菲-17-基)戊酸
(6aR,6bS,8aS,8bS,9aR,10aS,10bR)-8b-Acetyl-6a,8a-dimethyl-5,6,6a,6b,7,8,8a,8b,9a,10,10a,10b-dodecahydro-1H-naphtho[2',1':4,5]indeno[1,2-b]oxiren-4(2H)-one
16,17-环氧黄体酮
3β,5β-Dihydroxy-15β,16β-methylene-androst-6-en-17-one
3β,5β-二羟基-15β,16β-亚甲基-雄甾-6-烯-17-酮
17Alpha-hydroxyprogesterone
17a-羟基黄体酮
19-Hydroxyandrost-4-ene-3,17-dione
(8R,9S,10S,13S,14S)-10-(羟甲基)-13-甲基-7,8,9,10,11,12,13,14,15,16-十氢-1H-环戊二烯并[a]菲-3,17(2H,6H)-二酮
Lynestrenol
利奈孕醇
(4R)-4-((3S,7S,8R,9S,10S,13R,14S,17R)-3,7-Dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoic acid
(2S,4aR,4bS,6aS,7aS,8aS,8bS,8cR,8dR,9aR,9bR)-2,9b-Dihydroxy-4a,6a-dimethylhexadecahydro-1H-cyclopropa[4,5]cyclopenta[1,2-a]cyclopropa[l]phenanthren-7(7aH)-one
(2S,4aR,4bS,6aS,7aS,8aS,8bS,8cR,8dR,9aR,9bR)-2.9b-二羟基-4a,6a-二甲基十八烷基-7H-环丙烷[4,5]环戊[1,2-a]环丙烷[l]菲蒽7-酮
Cholic acid-24-13C
Ursodeoxycholic Acid-24-13C
Deoxycholic acid-24-13C
