Tri-n-butyltin chloride is an organotin compound and is also abbreviated as TBTC or TBTCl. The colorless to slightly yellowish liquid has a specific odor and is readily soluble in organic solvents, but almost insoluble in water. It is sensitive to moisture and should not come into contact with water.
TBTC is used as a catalyst for transesterification in chemical synthesis and can be used in some synthesis steps, for example in the pharmaceutical industry.