Disinfecting activity of some diphenyltin(IV) benzoate derivative compounds

Disinfecting activity test of four diphenyltin(IV) benzoate derivative compounds has been carried out. The four compounds investigated were diphenyltin (IV) di 4 aminobenzoate (DPDA) (2), diphenyltin (IV) di 4 chlorobenzoate (DPDC) (3), diphenyltin(IV) di-4-hydroxybenzoate (DPDH) (4), and diphenyltin(IV) di-4-nitrobenzoate (DPDN) (5), and they were prepared by reacting diphenyltin(IV) oxide (DPO) (1) with benzoic acid derivatives of 4-aminobenzoic acid (4-HABz), 4-chlorobenzoic acid (4-HCBz), 4-hydroxybenzoic acid (4-HHBz) and 4-nitrobenzoic acid (4-HNBz), respectively. The compounds were well characterized by H-1, C-13 NMR, IR, UV spectroscopies, and their pieces were defined using microanalytical data. The disinfectant test was carried out on two bacteria, Gram-negative Salmonella sp., and Gram-positive Staphylococus aureus. The result showed that all of the compounds were active as a disinfectant (disinfecting agent) with a minimum inhibitory concentration of 5 x 10(-4) M. Compound 5 was found to be most active compared to others which exhibited the ability to reduce the concentration of the S. aureus bacteria within 5 min.