(S-(R*,S*))-
isomer 5,6,7,8-tetrahydrobiopterin
5,6,7,8-erythro-tetrahydrobiopterin
5,6,7,8-tetrahydro-L-erythrobiopterin
5,6,7,8-tetrahydrobiopterin
5,6,7,8-tetrahydrodictyopterin
6R-BH4
6R-L-erythro-5,6,7,8-tetrahydrobiopterin
BH4
BPH4
D-threo-tetrahydrobiopterin
kuvan