The inhibition of urease from Sporosarcina pasteurii (SPU) and Canavalia ensiformis (jack bean, JBU) by a class six aromatic poly-hydroxylated molecules, namely mono- dimethyl-substituted catechols, was investigated on the basis inhibitory efficiency catechol scaffold. aim to probe key step mechanism proposed for SPU catechol, sulfanyl radical attack ring, as well obtain critical information ef...