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4-Amino-3,5-Dichloroacetophenone CAS37148-48-4

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3, 5-dichloro-4-aminoacetophenone, which is a beige crystal. Melting point of 158-160 ℃. Insoluble in cold water, slightly soluble in hot water, soluble in ethanol, ether, benzene and other organic solvents.
Production method: chlorination of aminoacetophenone. Add p-aminoacetophenone and acetic acid (80%) into the reaction pot, stir to dissolve, quickly add chlorine-containing glacial acetic acid solution, feed temperature 5℃, add, immediately put into ice water precipitation, filtration, water washing, the obtained crude product with ethanol recrystallization, the finished product.
Application: The product is an intermediate in the synthesis of antitussive and antiasthmatic drug clasthenin.

CAS 37148-48-4 Name 4-Amino-3,5-dichloroacetophenone
Appearance  yellow powder MF C8H7Cl2NO
Purity 99%min EINECS No 253-368-1
Application Pharmaceutical /industrial/animal and so on Grade EP,USP,CP,JP
Boiling point 351.5±42.0 °C at 760 mmHg

 

Melting point 162-166
density 1.4±0.1 g/cm3

 

Molecular Weight 371

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