| Name | 2-Pyridinesulfonic acid |
| Synonyms | NSC 5081 TAK438 Impurity 26 Vonoprazan Impurity 37 2-Pyridinesulfonic acid 2-PYRIDINESULFONIC ACID PYRIDINE-2-SULFONIC ACID 2-PYRIDINESULPHONIC ACID pyridine-2-sulfonic acid Pyridine-2-sulphonic acid alpha-Pyridinesulfonic acid 2-Pyridinesulfonic acid (8CI)(9CI) |
| CAS | 15103-48-7 |
| EINECS | 628-400-6 |
| InChI | InChI=1/C5H5NO3S/c7-10(8,9)5-3-1-2-4-6-5/h1-4H,(H,7,8,9) |
| Molecular Formula | C5H5NO3S |
| Molar Mass | 159.16 |
| Density | 1.509±0.06 g/cm3(Predicted) |
| Melting Point | 244-249 °C |
| Water Solubility | almost transparency |
| Appearance | powder to crystal |
| Color | White to Light yellow |
| pKa | -2.92±0.18(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.576 |
| Hazard Symbols | C - Corrosive![]() |
| Risk Codes | 34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2585 8/PG 3 |
| WGK Germany | 3 |
| HS Code | 29333990 |
| Hazard Class | 8 |
| Packing Group | III |