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Trichloroacetic acid, also known as trichloroacetic acid, is an organic compound with the formula C2HCl3O2, pungent odor, easy deliquescence, soluble in water, ethanol, ether. It is mainly used in organic synthesis and the preparation of medicine, and can also be used as chemical reagents and pesticides.

On October 27, 2017, the list of carcinogens published by the International Agency for Research on Cancer of the World Health Organization was preliminarily sorted out for reference, and trichloroacetic acid was included in the list of class 2B carcinogens. [6]

Chinese name
Trichloroacetic acid
Foreign name
Trichloroacetic acid（TCA）
alias
Trichloroacetic acid
chemical formula
C2HCl3O2
molecular weight
163.387
CAS registration number
76-03-9
EINECS login number
200-927-2
melting point
54 to 58 °C
boiling point
196 ℃
water solubility
soluble
density
1.62 g/cm3
appearance
Colorless crystals
Security description
S26； S36/37/39；S45； S60； S61
Hazard symbols
C
Hazard description
R35； R50/53