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异辛烷中工业毒杀芬农药溶液
(24R)-24-Ethylcholest-8(14)-ene
2,2’,3,3’,4,6,6’-七氯联苯(PCB 176) 标准品
4-(1H)-Pyridone (无证书)
硫丹醇
苹果汁中的苯醚甲环唑质控样 BQC1061122061
苯满特溶液,1000ppm
N-(2-Aminophenyl)-N'-phenylheptanediamide
(5α,16β)-N-Acetyl-16-[2-(acetyloxy)acetyloxy)-2'H-androst-2-eno[3,2-c]pyrazol-17-one
标样-铋