2,3-二羟基异戊酸,2,3-二羟基-3-甲基丁酸

19-HYDROXYTESTOSTERONE

盐酸沙丙蝶呤

(6R)-5-Methyl-5,6,7,8-tetrahydro-L-biopterin dihydrochloride

6-Hydroxymethyl-7,8-dihydropterin hydrochloride

(6R,S)-5-Formyl-5,6,7,8-tetrahydropteroyldi-γ-L-glutamic acid, lithium salt

AMinopterin[4-AMinofolic acid]

4-Amino-10-methylpteroyltetra-γ-L-glutamic acid, ammonium salt