Bis(trifluoromethyl) disulfide
# Bis(trifluoromethyl) disulfide

Bis(trifluoromethyl) disulfide (TFD) is a fluorinated organosulfur compound that was used as a fumigant. It is also an intermediate in the synthesis of triflic acid. It is a volatile liquid that is extremely toxic by inhalation.

## Synthesis

TFD can be produced by reaction of perchloromethyl mercaptan or thiophosgene with sodium fluoride.

## Toxicity

TFD is extremely toxic by inhalation. TFD is a powerful pulmonary agent that can cause severe pulmonary edema. TFD is about half as toxic as perfluoroisobutene.

