C-chloro-C-methyl-1H-Benzotriazole sodium salt (1:1)
CAS 202420-04-0
Can a corrosion-protection layer be only a few molecules thick? Benzotriazole chemistry - including CAS 202420-04-0 - shows how.
CAS 202420-04-0 is a sodium chloro-methylbenzotriazole system from the family of copper-corrosion inhibitors. Benzotriazoles do not need a thick coating: they adsorb and coordinate at copper surfaces, creating molecular-scale films that suppress corrosion reactions. Converting the inhibitor to a sodium salt helps deliver that chemistry through aqueous formulations.
Published:
2026-09-17
