76-05-1 Active Pharmaceutical Intermediates TFA For Organic Chemistry

Active Drug Intermediate Trifluoroacetic Acid For Various Purposes

TFA is a stronger acid than acetic acid, having an acid ionisation constant, Ka, that is approximately 34,000 times higher, as the highly electronegative fluorine atoms and consequent electron-withdrawing nature of the trifluoromethyl group weakens the oxygen-hydrogen bond (allowing for greater acidity) and stabilises the anionic conjugate base. TFA is widely used in organic chemistry for various purposes.

Many chemical transformations should be done with the aid of TFA.

TFA has important properties for its use in organic synthesis, such as low boiling point, high dielectric constant and strong acidity.

A number of pharmaceutical intermediates and agrochemicals should be prepared using TFA as a reagent or its derivatives during their synthesis.

Trifluoroacetic acid is a highly corrosive substance. Contact of the liquid with the skin, eyes, and mucous membranes can cause severe burns, and ingestion can result in serious damage to the digestive tract. TFA vapor is highly irritating of the eyes and respiratory tract, and inhalation of high concentrations can lead to severe destruction of the upper respiratory tract and may be fatal as a result of pulmonary edema. Symptoms of overexposure to TFA vapor include a burning feeling, coughing, headache, nausea, and vomiting.

Trifluoroacetic acid has not been found to be carcinogenic or to show reproductive or developmental toxicity in humans.