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4.4′-滴滴伊 BePure-21633YB
多巴胺盐酸盐
Methylated Chlorinated Herbicides Mixture-8150 100ug/ml in Methanol
Holmium oxide - UV and visible wavelength 标准品
苍术农残空白质控样 BQC4125031308B
1,4-二氯苯,5000MG, NEAT 标准品
2,3-DICHLOROPROPIONANILIDE PESTANAL,250 标准品
4?Fluoro-2,3,3?4,5,6-hexabromodiphenyl ether 标准品
禾草灭溶液,100ppm
氟虫脲