2-MERCAPTOPYRIDINE N-OXIDE
- CAS NO.：304675-78-3
- Empirical Formula: C5H5NOS
- Molecular Weight: 127.16
- MDL number: MFCD00006196
- EINECS: 679-114-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-04-23 13:52:06
What is 2-MERCAPTOPYRIDINE N-OXIDE?
Chemical properties
OFF-WHITE TO YELLOWISH GRANULAR CRYST. POWDER
Preparation
A solution of 60 gm (0.284) of 2-bromopyridine N-oxide hydrochloride is neutralized with 25% aqueous sodium hydroxide. In a well-ventilated hood, to this solution, heated with stirring on a steam bath, is added dropwise over a 1-hr period a solution of 32 gm (0.57 mole) of sodium hydrogen sulfide in 150 ml of water. After the addition has been completed, heating is continued for 0.5 hr. The reaction mixture is cooled, filtered, and acidified with 6 Ν hydrochloric acid to afford 24 gm (67%), m.p. 65-68°C. Upon recrystallization from aqueous ethanol, the melting point is raised to 68-70°C.
Similar results were obtained when an equivalent quantity of sodium sulfide was substituted for sodium hydrogen sulfide.
Properties of 2-MERCAPTOPYRIDINE N-OXIDE
| Melting point: | 70-72 °C |
| Boiling point: | 109 °C |
| Density | 1.22 |
| form | Granular Crystalline Powder |
| color | Off-white to yellow |
| Merck | 14,7994 |
Safety information for 2-MERCAPTOPYRIDINE N-OXIDE
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H301:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for 2-MERCAPTOPYRIDINE N-OXIDE
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