4-Pyridinealdoxime
Synonym(s):4-Pyridinecarbaldehyde oxime;Isonicotinaldoxime
- CAS NO.：696-54-8
- Empirical Formula: C6H6N2O
- Molecular Weight: 122.12
- MDL number: MFCD00006446
- EINECS: 211-796-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-04-23 13:52:06
What is 4-Pyridinealdoxime?
Chemical properties
white very fine crystalline powder
The Uses of 4-Pyridinealdoxime
An intermediate for bis(hydroxyiminomethylpyridinium)butenes as reactivators of chlorpyrifos-inhibited acetylcholinesterase.
The Uses of 4-Pyridinealdoxime
It is employed as an intermediate for bis(hydroxyiminomethylpyridinium)butenes and as reactivators of chlorpyrifos-inhibited acetylcholinesterase. It is also used in the chromatographic separation and NMR characterization of the isomers of 1,1?-Methylenebis{4-[(hydroxyimino)methyl]pyridinium) dichloride.
Purification Methods
Crystallise the oxime from water. [Beilstein E-isomer 21 III/IV 3533, 21/7 V 355.]
Properties of 4-Pyridinealdoxime
| Melting point: | 131-133 °C |
| Boiling point: | 227.52°C (rough estimate) |
| Density | 1.2236 (rough estimate) |
| vapor pressure | <0.01 hPa (50 °C) |
| refractive index | 1.5350 (estimate) |
| Flash point: | 110 °C |
| storage temp. | Store below +30°C. |
| solubility | 10g/l |
| form | Solid |
| pka | pK1:4.73(+1);pK2:10.03(0) (25°C) |
| color | White to Off-White |
| PH | 6.3 (10g/l, H2O, 20℃) |
| Water Solubility | 10 g/L (20 ºC) |
| BRN | 2079 |
| CAS DataBase Reference | 696-54-8(CAS DataBase Reference) |
| NIST Chemistry Reference | 4-Pyridinecarboxaldehyde, oxime(696-54-8) |
Safety information for 4-Pyridinealdoxime
| 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. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. 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-Pyridinealdoxime
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product: 4-Pyridinealdoxime 98%
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