Dibutyl Tin Bis(Isooctylmaleate) CAS 25168-21-2
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Product Description
Product Details
Introduction
Dibutyltin bis(isooctylmaleate) is a dialkyltin carboxylate featuring two isooctylmaleate ligands bound to a dibutyltin center. It appears as a colorless to pale yellow liquid or low-melting solid (melting point ca. –25 °C) with a density around 1.145 g/cm³ and flash point of 123 °C. Its high thermal and hydrolytic stability combined with moderate Lewis acidity make it an effective catalyst in esterification, polyester and polyurethane formulations, as well as a stabilizer in PVC processing.
Quality standard
| Item | Index |
| Appearance | Yellow oily liquid |
| Tin content | 17.20%-18.10% |
| Specific gravity (g/cm3, 30°C) | 1.140-1.160 |
| Refractive index (25°C) | 1.4700-1.4995 |
Application
This product is a heat stabilizer for polyvinyl chloride products, with excellent long-term stability and weather resistance. It can improve initial coloring and promote gelation.
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