N-tributyltin mesylimide—a new water-soluble fungicide

In addition to the known water-soluble tributyltin compounds, N-tributyltin mesylimide [Bu₃SnN-(SO₂Me₂)₂] was prepared and proposed as a fungicide for water-based preservative formulations. The aqueous solubility of the new compound is in the range of 11.0–11.4% w/w at 25 °C and its activity towards moulds (Aspergillus niger) is near that for tributyltin oxide. The compound has an average toxicity (LD₅₀=740 mg kg^?1).