11056-08-9 17094-01-8 2-Amino-6-(S)-lactoyl-7,8-dihydro-4(3H)-pteridinone 29106-41-0 3927-68-2 4(1H)-Pteridinone, 2-amino-7,8-dihydro-6-(2-hydroxy-1-oxopropyl)-, (S)- Sepiapterin