Synonyms: BRN 1122380;5,6,7,8-Tetrahydro-1,3-dimethyl-6-ethylpyrimido(4,5-d)pyrimidine-2,4(1H,3H)-dione;Pyrimido(4,5-d)pyrimidine-2,4(1H,3H)-dione, 5,6,7,8-tetrahydro-1,3-dimethyl-6-ethyl-;AC1MINHO;LS-136277;6-ethyl-1,3-dimethyl-7,8-dihydro-5H-pyrimido[4,5-d]pyrimidine-2,4-dione;64179-77-7