2,4-二氯-6,7-二氢-5H-环戊并嘧啶;
2,4,5-TRICHLOROPHENOL (RING-D2);2,4-Dichlor-5,6-tetramethylen-pyrimidin;QC-3862;2,4-dichloro-5,6-tetramethylenepyrimidine;2,4-dichloro-5,6,7,8-tetrahydro-quinazoline;
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