2009-64-5 6-(D-erythro-1,2,3-Trihydroxypropyl)pterin 6-D-erythro-Neopterin C05926 D-Neopterin D-erythro-Neopterin Neopterin [S-(R*,S*)]-2-Amino-6-(1,2,3-trihydroxypropyl)-1H-pteridin-4-on [S-(R*,S*)]-2-amino-6-(1,2,3-trihydroxypropyl)-1H-pteridin-4-one [S-(R*,S*)]-2-amino-6-(1,2,3-trihydroxypropyl)-1H-pteridine-4-one