The chemical Sivelestat has a designated molecular formula of C20H22N2O7S and a molecular weight of 434.463 g/mol. Synonyms may include: N-(2-(4-(2,2-Dimethylpropionyloxy)phenylsulfonylamino)benzoyl)aminoacetic acid, Ono-5046, EI 546, LY 544349, ONO5046, UNII-DWI62G0P59, ONO-5046.Na (ChemID). Sivelestat has been assigned a MeSH pharmacological action of: Serine Proteinase Inhibitor.