4-Picoline-N-oxide
Synonym(s):4-Methylpyridine 1-oxide;4-Picoline N-oxide
- CAS NO.：1003-67-4
- Empirical Formula: C6H7NO
- Molecular Weight: 109.13
- MDL number: MFCD00006210
- EINECS: 213-712-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-04-23 13:52:06
What is 4-Picoline-N-oxide?
Chemical properties
ALMOST WHITE TO BROWN FINE CRYSTALLINE POWDER
Purification Methods
Recrystallise the N-oxide from EtOH/EtOAc, Me2CO/Et2O or *C6H6. [Bullitt & Maynard J Am Chem Soc 76 1370 1954, Boekelheide & Linn J Am Chem Soc 76 1286 1954]. [Beilstein 20 III/IV 2741, 20/5 V 558.]
Properties of 4-Picoline-N-oxide
| Melting point: | 182-185 °C(lit.) |
| Boiling point: | 152°C 11mm |
| Density | 1.1143 (rough estimate) |
| refractive index | 1.5180 (estimate) |
| Flash point: | 149 °C |
| storage temp. | Store at +2°C to +8°C. |
| solubility | 1000g/l |
| pka | 1.38±0.10(Predicted) |
| form | powder to crystal |
| color | White to Light yellow to Light orange |
| PH | >7 (H2O, 25℃)Aqueous solution |
| Water Solubility | soluble |
| Sensitive | Hygroscopic |
| BRN | 106329 |
| CAS DataBase Reference | 1003-67-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Pyridine, 4-methyl-, 1-oxide(1003-67-4) |
| EPA Substance Registry System | Pyridine, 4-methyl-, 1-oxide (1003-67-4) |
Safety information for 4-Picoline-N-oxide
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
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. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 4-Picoline-N-oxide
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