4 - nitro-cinnamic acid

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4 - nitro-cinnamic acid
Posting date : Aug 25, 2010
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Name: 4 - nitro-cinnamic acid Synonym: cinnamic acid on the nitro English name :4-Nitrocinnamic Acid CAS No.: CAS No. No Information Packing: 25kg (bag) Specification: 99% Molecular Weight: 193.16 CAS No. :619-89-6 Properties: yellow needle crystal. Melting point 289 ℃. Insoluble in water. Preparation: will Nitro cinnamonitrile, concentrated hydrochloric acid and water heating with reflux 8h, standing overnight. Filter out sediment, dissolved in hot 30% sodium hydroxide solution, filtered insolubles, the filtrate precipitated with 50% sulfuric acid Shen Ding, filtration was crude, ethanol recrystallization, was on the nitro-cinnamic acid. Purposes: organic synthesis intermediates.

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