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氯菊酯农药纯度标准物质
丙酮中氟胺氰菊酯溶液标准物质
Di-n-hexyl maleate
5,6-Difluoro-2,2',3,4,4'-pentabromodiphenyl ether (2,2',3,4,4'-Pentabromo-5,6-difluorodiphenyl ether
(办证)氘代1,4-二氯苯D4
乙硫磷甲醇溶液标准物质
d-trans-Cyphenothrin Solution 100ug/ml in MTBE
2-Chloro-5-methylphenol
甲醇中磺胺噻唑-D4同位素标准溶液
5-Norbornene-2-methanol (无证书)