2-Amino-4-hydroxy-5,6-dimethyl-5,6,7,8-tetrahydropteridine 2-Amino-5,6-dimethyl-5,6,7,8-tetrahydro-4(1H)-pteridinone 25239-84-3 4(1H)-Pteridinone, 2-amino-5,6,7,8-tetrahydro-5,6-dimethyl- 5,6-Dimethyl-5,6,7,8-tetrahydropterin H4Dmp