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替考拉宁溶液, 100ppm
3,5,6-三氯-2-吡啶酚
吡螨胺
美洛昔康-D3
Endosulfan-II-d4 标准品
Bis(2-chloro-1-methylethyl) ether(有证书)
1-Chlorohexane-d13 标准品
甲硝唑-13C2,15N2
3.3'-Dimethoxybenzidine Solution 100ug/ml in Methanol
Carbon Monoxide in Nitrogen (Nominal 50 μmol/mol)