RESIDUE Q2Z 24 CONECT N 3 S H1 H2 CONECT O1 1 S CONECT S 4 N O1 O2 C4 CONECT O2 1 S CONECT C4 4 S C3 H3 H4 CONECT C3 4 C4 C1 H5 H6 CONECT H1 1 N CONECT H2 1 N CONECT H3 1 C4 CONECT H4 1 C4 CONECT H5 1 C3 CONECT H6 1 C3 END HET Q2Z 24 HETNAM Q2Z Carborane ethyl-sulfonamide FORMUL Q2Z C4 H6 B10 N1 O2 S1