57821-20-2;NSC251949;AC1L7X0J;NSC-251949;1,3-D]PYRIMIDINE-2,4,7(1H,3H,8H)-TRIONE;1,3-dimethyl-8H-pyrido[2,3-d]pyrimidine-2,4,7-trione;1,3-dimethyl-1,8-dihydro-pyrido[5,6-e]pyrimidine-2,4,7-trione
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