Butylchlorotin dihydroxide

Butylchlorotin dihydroxide (CAS 13355-96-9), also known as Monobutyltin dihydroxychloride, is an organotin compound used as a catalyst and reactive intermediate in polymer processing and surface coating systems. It functions primarily as a curing agent and crosslinking promoter, enabling controlled network formation in tin-catalyzed formulations. In industrial coatings, it acts as a catalyst for moisture-cure and condensation-cure systems.

This material supports film formation in protective and functional coating applications. Sealant and elastomer manufacturers use it to drive crosslinking in silicone and polyurethane-based formulations. Cure rate and network density are critical to end-product performance in these applications. In PVC stabilizer chemistry, it serves as a precursor to more complex organotin stabilizer compounds.

This makes it highly relevant to polymer additive producers rather than end-use compounders. Adhesive formulators working with reactive systems also evaluate it where controlled tin-catalyzed curing is required. Butylchlorotin dihydroxide is typically supplied as a solid powder or crystalline material. It is available in technical grade, with purity specifications commonly confirmed by tin content assay.

Packaging is generally offered in kilogram-scale quantities suited to specialty chemical and catalyst applications. This ensures the material meets the specific handling requirements of industrial laboratories.