aczone araldite atrisone avlosulfon avlosulfone avlosulphone avsulfor bis sulfone bis sulfoxide bissulfone bissulphone croysulfone croysulphone dapson dapsona dapsonum di sulfone di sulfoxide diaphenyl sulfone diaphenylsulfon diaphenylsulfone diaphenylsulphon diaphenylsulphone dimitone diphenasone diphone disulfone disulone disulphone dubronax dubronaz dumitone eporal medapsol metabolite c novophone protogen servidapson slphadione sulfadione sulfona sulfone ucb sulfonyldianiline sulphadione sulphonyldianiline sumicure s tarimyl udolac