Tags: Chemical Compound, Chemical Substance.
Terephthaloyl chloride (TCL 14-benzenedicarbonyl chloride) is the acid chloride of terephthalic acid and is one of two monomers used to make Kevlar(R) the other being p-phenylenediamine. Its CAS reference number is 100-20-9 and its chemical formula is C8H4Cl2O2.TCL is used as a key component in performance polymers and aramid fibers where it imparts flame resistance chemical resistance temperature stability light weight and very high strength.
