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马来酸溴苯那敏 标准品
BHC (mixed isomers)(有证书)
丙环唑甲醇溶液标准物质
2'.4'-Dimethylacetophenone (无证书)
敌敌畏同位素-D6
Methylated Chlorinated Acids - 515 - Solution
Cyclomethicone5
(办证) MCPB D6 (ring D3, methyl D3) 标准品
敌稗 BePure-25215
Indium Shot (In) 99.999%