2,8-Dihydro-2,6,8-trimethylpyrimido(5,4-e)-as-triazine-3,5,7-trione 2-Methylfervenulone 22712-32-9 BRN 0540815 MSD-92 Pyrimido(5,4-e)-1,2,4-triazine-3,5,7(6H)-trione, 2,8-dihydro-2,6,8-trimethyl- (9CI)- Pyrimido(5,4-e)-as-triazine-3,5,7(6H)-trione, 2,8-dihydro-2,6,8-trimethyl-