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磺胺二甲异恶唑;磺胺异恶唑
Custom Labeled PCB Standard 标准品
呋喃丹农药标准物质(克百威,克百畏)
2'-Fluoro-2,4,4'-tribromodiphenyl ether
Etofenprox Solution 100ug/ml in Acetonitrile
2-Amino-3-(2-chlorobenzoyl)-5-ethylthiophene
氯氰菊酯 BePure-21549YB
Fenpyroximate
PFBOA benzaldoxime (anti)
丁二酸酐