• 23000-37-5
    1,5-dihydropyrimido[5,4-d]pyrimidine-4,6,8-trione
  • 16888-00-9
    2-N,4-N,8-N-trimethylpyrimido[5,4-d]pyrimidine-2,4,8-triamine
  • 参考文献

    Thomae G.m.b.H. Patent: GB807826 , 1956 ;

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