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2.4-Dichlorophenyl benzenesulfonate Solution 100ug/ml in Acetonitrile
OIL, BERGAMOT(RG) 标准品
顺式氯氰菊酯农药纯度标准物质
First Standard® 杀虫丹亚砜
乙缩醛二乙醇
Pentylene tetrazole (无证书)
鱼藤酮溶液, 100ppm
Fenitrothion,
吡草胺 标准品
Simazine Solution 1000ug/ml in Acetone