??????????
|
|
?????????? ??
- ???
- -4--2°C
- ?? ?
- 71-73 °C/10 mmHg (lit.)
- ??
- 1.137 g/mL at 20 °C (lit.)
- ???
- 0.02 hPa (20 °C)
- ???
- n
20/D 1.544(lit.)
- ???
- 130 °F
- ?? ??
- Store at +2°C to +8°C.
- ???
- 20g/L
- ?? ?? (pKa)
- 12.05(at 30℃)
- ??? ??
- ?? (??)
- ??
- ??? ??-???
- ??????(pH)
- 7-8 (H2O, 20℃)(saturated aqueous solution)
- ???
- 20g/L(20℃)
- ??
- Air Sensitive
- BRN
- 105342
- Henry's Law Constant
- 5.6×101 mol/(m3Pa) at 25℃, Abraham et al. (1994)
- InChI
- 1S/C6H5NO/c8-5-6-1-3-7-4-2-6/h1-5H
- InChIKey
- BGUWFUQJCDRPTL-UHFFFAOYSA-N
- SMILES
- [H]C(=O)c1ccncc1
- LogP
- 0.12 at 30℃ and pH7
- CAS ??????
- 872-85-5(CAS DataBase Reference)
??
- ?? ? ?? ??
- ?? ? ???? ?? (GHS)
| ??? ?? | Xi,F | ||
|---|---|---|---|
| ?? ???? ?? | 36/37/38-10 | ||
| ????? | 26-36-36/37/39-16 | ||
| ????(UN No.) | UN 1989 | ||
| WGK ?? | 1 | ||
| RTECS ?? | NR9400000 | ||
| F ?????? | 8-10-23 | ||
| ?? ?? ?? | Irritant/Keep Cold/Air Sensitive | ||
| TSCA | TSCA listed | ||
| ?? ?? | 3.2 | ||
| ???? | III | ||
| HS ?? | 29333999 | ||
| ???? ??? | 8A - Combustible corrosive hazardous materials | ||
| Hazard Classifications | Aquatic Chronic 3 Eye Dam. 1 Skin Corr. 1B Skin Sens. 1 |
||
| ?? | LD50 orally in Rabbit: 2355 mg/kg LD50 dermal Rat > 2000 mg/kg |
?????????? C??? ??, ??, ??
??? ??
clear yellow-brown liquid. soluble in water and ether.??
4-Pyridinecarboxaldehyde, is an heterocyclic building block used for the synthesis of various pharmaceutical compounds, such as new 1,4-dihydropyridin-4-yl-phenoxyacetohydrazones, having anticonvulsant and anti-inflammatory properties.?? ??
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.?? ??
4-Pyridinecarboxaldehyde undergoes many reactions expected for aromatic aldehydes such as reductive amination and Schiff base formation. It condenses with pyrrole to give tetrapyridylporphyrin.Purification Methods
Purified as for pyridine-2-aldehyde. [Beilstein 21 III/IV 2529, 21/7 V 351.]?????????? ?? ?? ? ???
???
?? ??
?????????? ?? ??
???( 599)?? ??
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