China, Rest-China Africa

Flip crossing
2022

High quality

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2022

High quality CAS:1451-82-7 2-Bromo-4'-methylpropiophenone

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2022

High quality CAS:1451-82-7 2-Bromo-4'-methylpropiophenone

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2022

cas no.:20320-59-6

The anhydrous ethanol co-vaporized with diethyl phthalate and sodium metal is added dropwise to the mixture of diethyl malonate, carbon tetrachloride and magnesium, heated to start the reaction, and the temperature is controlled to smooth the reaction.…

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