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Semicarbazide-13C,15N2 Hydrochloride

1-(P-Methoxyphenyl)-1-Penten-3-One

汞水质标液(浓度1000ug/mL)

L-Tyrosinol hydrochloride

Solvent Yellow 33

Diethofencarb 10 µg/mL in Cyclohexane

电子电器产品ABS中的十溴二苯醚（BDE-209）

N-N-Dimethylacetamide (DMAC)

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