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Propionic anhydride

CAS : 123-62-6

Molecular weight: 130.14

Molecular formula: (CH3CH2CO)2O

Structural formula:

Specific gravity: 1.01

Boiling point:  169℃

Melting point: -43℃

The product is colorless irritating liquid. Soluble in diethyl ether and trichloromethane. Breaks down into propionic acid and propionate in contact with water and ethyl alcohol.

Uses: Propionic anhydride is used as acylating agent in producing drug, pesticide, spice and special ether.

Quality index:


Enterprise standard



Colorless transparent liquid

Visual method

Propionic anhydride


FID capillary column, area normalization method

Propionic acid


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