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英文名:4,4-Dimethyl-1-(p-chlorophenyl)-3-pentanone CAS NO:66346-01-8
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英文名:5-chloro-2,3-difluoropyridine CAS NO:89402-43-7
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英文名:2,3,5-trichloropyridine CAS NO:16063-70-0
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