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4-溴联苯
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4,4'-联苯醚二酐 | 1823-59-2 | 乐研
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First Standard® 4,4’-二氨基二苯硫醚
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First Standard® 2,4’-滴滴涕
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First Standard® 2,2’,3,3’,4,5,5’,6-八氯联苯
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4,4'''-二(2-丁基辛氧基)对四联苯,18434-08-7,97%
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First Standard® 正己烷中2,2’,4,4’,5,5’-六氯联苯溶液,100μg/mL
2,2’,4,4’,5,5’-Hexachlorobiphenyl Solution in Hexane, 100μg/mLFirst Standard®天津
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2,2',4,4'-四羟基二苯基硫醚,97-29-0,>97.0%(HPLC)
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4,4'-二溴-2,2'-二碘联苯,852138-89-7,97%
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2,2',4,4'-四氯联苯,2437-79-8,35 ug/mL in Isooctane
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