dibutyltin mono(2-ethylhexyl) maleate: a high-performance stabilizer for rigid pvc applications introduction dibutyltin mono(2-ethylhexyl) maleate (dbt(eh)m), often marketed under various trade names, is an organotin compound widely utilized as a heat stabilizer in rigid polyvinyl chloride (pvc) formulations. its efficacy in preventing thermal degradation during processing, combined with its contribution to the long-term stability and clarity...