Synonyms: 4(1H)-Pteridinone,2-amino-6-(1,2-dihydroxypropyl)-5,6,7,8-tetrahydro-, dihydrochloride,[6R-[6R*(1R*,2S*)]]-; 4(1H)-Pteridinone,2-amino-6-[(1R,2S)-1,2-dihydroxypropyl]-5,6,7,8-tetrahydro-, dihydrochloride,(6R)- (9CI); (6b)-5,6,7,8-Tetrahydro-L-biopterindihydrochloride; BioMarin T 1401; Biopten; Kuvan; SUN 0588; Sapropterindihydrochloride; Shiratori SN 0588