4(1H)-Pteridinone, 2-amino-6-((1R,2S)-1,2-dihydroxypropyl)-7,8-dihydro- 4(1H)-Pteridinone, 2-amino-6-(1,2-dihydroxypropyl)-7,8-dihydro-, (S-(R*,S*))- 6779-87-9 7,8-Dihydrobiopterin Dihydrobiopterin L-erythro-Dihydrobiopterin L-erythro-q-Dihydrobiopterin Quinonoid dihydrobiopterin q-BH2