| Type | Program | Version | Descriptor |
| InChI | InChI | 1.03 | InChI=1S/C17H14N2O4S/c20-17(18-21)12-5-4-7-14-8-6-9-15(13-14)19-24(22,23)16-10-2-1-3-11-16/h1-3,5-6,8-13,19,21H,(H,18,20)/b12-5+ |
| InChIKey | InChI | 1.03 | QRPSQQUYPMFERG-LFYBBSHMSA-N |
| SMILES_CANONICAL | CACTVS | 3.385 | ONC(=O)/C=C/C#Cc1cccc(N[S](=O)(=O)c2ccccc2)c1 |
| SMILES | CACTVS | 3.385 | ONC(=O)C=CC#Cc1cccc(N[S](=O)(=O)c2ccccc2)c1 |
| SMILES_CANONICAL | OpenEye OEToolkits | 2.0.4 | c1ccc(cc1)S(=O)(=O)Nc2cccc(c2)C#C/C=C/C(=O)NO |
| SMILES | OpenEye OEToolkits | 2.0.4 | c1ccc(cc1)S(=O)(=O)Nc2cccc(c2)C#CC=CC(=O)NO |
