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2.4-D ethyl ester Solution 100ug/ml in Acetonitrile
EPA Method 532 Phenylurea Pesticides Mixture 200ug/ml in Methanol:Acetone (50:50)
2-Amino-5-methyl-3-thiophenecarbonitrile
Bupivacaine Related Compound A
2-NP-AHD-13C3
6种元素标准溶液(铝、钡、铜、铁、锰、锌)
甲醇中乙拌磷砜
Trichloroacetic acid sodium salt,certified 标准品
Florida Total Petroleum Hydrocarbon Standards Mixture - TPH 500ug/ml in Hexane
First Standard® 三唑酮