Pyridine-4-carboxylic acid N-oxide
- CAS NO.：13602-12-5
- Empirical Formula: C6H5NO3
- Molecular Weight: 139.11
- MDL number: MFCD00006209
- EINECS: 237-086-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-05-25 18:01:24
What is Pyridine-4-carboxylic acid N-oxide?
Chemical properties
white to beige or yellow crystalline powder
The Uses of Pyridine-4-carboxylic acid N-oxide
Isonicotinic acid N-oxide was used in the synthesis of three-dimensional coordination polymers based on inorganic lanthanide(II) sulfate skeletons.
Definition
ChEBI: Isonicotinic acid N-oxide is a member of pyridines and an aromatic carboxylic acid.
General Description
Isonicotinic acid N-oxide interacts with 3d metal(II) perchlorates in ethanol-triethyl orthoformate leading to partial substitution of perchlorate with isonicotinate-N-oxide anionic groups. It reacts with AgClO4 or AgBF4 to yield distinct crystalline products. It forms polymeric lanthanide(III) complexes.
Properties of Pyridine-4-carboxylic acid N-oxide
| Melting point: | 270-271 °C(lit.) |
| Boiling point: | 255.04°C (rough estimate) |
| Density | 1.4429 (rough estimate) |
| refractive index | 1.5423 (estimate) |
| storage temp. | 2-8°C |
| pka | 3.66±0.10(Predicted) |
| form | powder to crystal |
| color | White to Light yellow to Light red |
| BRN | 119571 |
| CAS DataBase Reference | 13602-12-5(CAS DataBase Reference) |
| EPA Substance Registry System | 4-Pyridinecarboxylic acid 1-oxide (13602-12-5) |
Safety information for Pyridine-4-carboxylic acid 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. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. 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 Pyridine-4-carboxylic acid N-oxide
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