Cyanuric chloride

Cyanuric chloride (CAS 108-77-0), also known as cyanur chloride, cyanuryl chloride, and trichloro-s-triazine, is a reactive triazine compound with three replaceable chlorine atoms. These chlorine groups make it a highly functional intermediate for building more complex molecular structures through sequential nucleophilic substitution reactions.

In textile and leather processing, cyanuric chloride serves as a reactive anchor for dye fixation and UV-absorbing agents, bonding them covalently to fiber substrates for durability. In flame retardant formulations for plastics and coatings, it acts as a nitrogen-rich building block that promotes char formation and interrupts combustion at the polymer level.

Cyanuric chloride is supplied as a white solidified mass or fragments and is subject to REACH registration requirements within the EU. It is classified under HS code 29336980 and handled under strict hazard protocols given its reactivity with moisture. Procurement teams should confirm purity grade and packaging specifications directly with the supplier.