4-Pyridinecarboxaldehyde
Synonym(s):4-Pyridinecarbaldehyde;Isonicotinaldehyde;Pyridine-4-aldehyde, Isonicotinaldehyde
- CAS NO.：872-85-5
- Empirical Formula: C6H5NO
- Molecular Weight: 107.11
- MDL number: MFCD00006425
- EINECS: 212-832-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-08-27 18:15:04
What is 4-Pyridinecarboxaldehyde?
Chemical properties
clear yellow-brown liquid. soluble in water and ether.
Preparation
4-Pyridinecarbaldehyde is synthesized by oxidation of 4-picoline. The mixed gas of 4-picoline and air is passed through the vanadium-molybdenum catalyst layer heated to 400°C, and oxidized to generate 4-pyridinecarbaldehyde.
The Uses of 4-Pyridinecarboxaldehyde
4-Pyridinecarboxaldehyde is a heterocyclic building block used to prepare Schiff bases via a Korich-type reaction.
Properties of 4-Pyridinecarboxaldehyde
| Melting point: | -4--2°C |
| Boiling point: | 71-73 °C/10 mmHg (lit.) |
| Density | 1.137 g/mL at 20 °C (lit.) |
| vapor pressure | 0.02 hPa (20 °C) |
| refractive index | n |
| Flash point: | 130 °F |
| storage temp. | Store at +2°C to +8°C. |
| solubility | 20g/l |
| form | liquid (clear) |
| pka | 12.05(at 30℃) |
| color | clear brown-yellow |
| PH | 7-8 (H2O, 20℃)(saturated aqueous solution) |
| Water Solubility | 20 g/L (20 ºC) |
| Sensitive | Air Sensitive |
| BRN | 105342 |
| CAS DataBase Reference | 872-85-5(CAS DataBase Reference) |
| NIST Chemistry Reference | 4-Pyridinecarboxaldehyde(872-85-5) |
| EPA Substance Registry System | 4-Pyridinecarboxaldehyde (872-85-5) |
Safety information for 4-Pyridinecarboxaldehyde
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation H317:Sensitisation, Skin H412:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P272:Contaminated work clothing should not be allowed out of the workplace. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. 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-Pyridinecarboxaldehyde
| InChIKey | BGUWFUQJCDRPTL-UHFFFAOYSA-N |
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