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2-乙酰氨基-5-硝基噻唑 标准品
三氯甲烷中马拉硫磷
Heptachlor epoxide Solution 100ug/ml in Methanol
JEA Method Volatile Organic Compounds Mixture 1000ug/ml in Methanol
Methantheline Bromide
喹禾灵(介质:丙酮)
2,4-滴丁酯(2,4-D-1-丁酯)
诺龙/19-去甲睾酮 标准品
1,5-Dimethylphenanthrene
氟西泮杂质溶液,100ppm