1121-31-9
2-Mercaptopyridine-N-oxide
CAS: 1121-31-9
Molecular Formula: C5H5NOS
1121-31-9 - Names and Identifiers
1121-31-9 - Physico-chemical Properties
| Molecular Formula | C5H5NOS |
| Molar Mass | 127.16 |
| Density | 1.255 (estimate) |
| Melting Point | 69-72 °C (lit.) |
| Boling Point | 350.2±15.0 °C(Predicted) |
| Flash Point | 165.572°C |
| Solubility | Soluble in tris-hydrochloric acid. |
| Vapor Presure | 0mmHg at 25°C |
| Appearance | Powder, Crystals, and/or Chunks |
| Color | Off-white to beige or yellow to yellow-greenish or grayish-green |
| Merck | 14,7994 |
| BRN | 906983 |
| pKa | 5.40±0.50(Predicted) |
| Storage Condition | Refrigerator |
| Stability | Stable. Incompatible with strong bases, strong oxidizing agents. |
| Sensitive | Air & Light Sensitive |
| Refractive Index | 1.5480 (estimate) |
| MDL | MFCD00006196 |
| Use | Widely used in the preparation of a variety of pyrithione-derived products |
1121-31-9 - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R22 - Harmful if swallowed R63 - Possible risk of harm to the unborn child R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. S36/37 - Wear suitable protective clothing and gloves. S22 - Do not breathe dust. |
| UN IDs | 2811 |
| WGK Germany | 3 |
| RTECS | UT8999000 |
| FLUKA BRAND F CODES | 8-10-13-23 |
| TSCA | Yes |
| HS Code | 29333990 |
1121-31-9 - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Uses | Widely used to prepare various pyrithione derivatives |
Last Update：2024-04-09 02:00:06
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CAS: 1121-31-9
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