2-amino-6-((1S,2S)-1,2,3-trihydroxypropyl)pteridin-4(3H)-one;L-threo-1-(2-Amino-4-hydroxy-6-pteridinyl)-1,2,3-propanetriol; [S-(R*,R*)]-2-amino-6-(1,2,3-trihydroxypropyl)-4(1H)pteridinone;2-Amino-6-[(1S,2S)-1,2,3-trihydroxypropyl]-4(1H)-pteridinone;2-Aino-6-(L-threo-trihydroxypropyl)-4(3H)-Pteridinone; L-(+)-Monapterin; L-6-(threo-1',2',3'-Trihydroxypropyl)pterin; L-Monapterin; L-threo-Monapterin; L-threo-Neopterin; L-(+)-Monapterin; L-threo-Neopterin;L-Monapterin