Synonyms: Fervenulin-4-oxide;BRN 1220136;6,8-Dimethylpyrimido(5,4-e)-1,2,4-triazine-5,7(6H,8H)-dione-4-oxide;Pyrimido(5,4-e)-1,2,4-triazine-5,7(6H,8H)-dione, 6,8-dimethyl-, 4-oxide;6,8-dimethylpyrimido[5,4-e][1,2,4]triazine-5,7(6h,8h)-dione 4-oxide;AC1LBHT6;AC1Q2256;AR-1H0486;LS-136347;6,8-dimethyl-4-oxidopyrimido[5,4-e][1,2,4]triazin-4-ium-5,7-dione