Chemical Name: 4,4'-Sulfonyldianiline ; Avlosulfon ; Croysulfone ; Diphenasone ; Disulone ; Dumitone ; Eporal ; Novophone ; Sulphadione ; 4,4’-Sulfonylbisbenzeneamine; 1,1’-Sulfonylbis[4-aminobenzene]; 4,4’-Diaminodiphenyl Sulfone

Smiles: O=[S](C1=CC=C(N)C=C1)(C2=CC=C(N)C=C2)=O