Synonyms: 7,8-Dihydrobiopterin;Dihydrobiopterin;L-erythro-7,8-Dihydrobiopterin;L-erythro-Dihydrobiopterin;1,2-Propanediol,1-(2-amino-7,8-dihydro-4-hydroxy-6-pteridinyl)-, L-erythro- (8CI);4(1H)-Pteridinone,2-amino-6-(1,2-dihydroxypropyl)-7,8-dihydro-, [S-(R*,S*)]-;4(1H)-Pteridinone,2-amino-6-[(1R,2S)-1,2-dihydroxypropyl]-7,8-dihydro- (9CI);7,8-Dihydro-L-biopterin;