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
77776-68-2
2,4,8-trichloropyrimido[5,4-d]pyrimidine
+
74-89-5
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