2,5-Diaminopyridine
- CAS NO.：4318-76-7
- Empirical Formula: C5H7N3
- Molecular Weight: 109.13
- MDL number: MFCD00129023
- EINECS: 626-246-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-07-16 09:52:09
What is 2,5-Diaminopyridine?
Chemical properties
Yellow to purple crystalline powder
The Uses of 2,5-Diaminopyridine
2,5-Diaminopyridine may be used in the preparation of 6-acetamidoimidazo[ 1,2-a]pyridine. It may be used in the preparation of organo-soluble polyimides by reacting with different dianhydride monomers. These polyimides form the precursor for preparing novel polyimide-silica composites.
General Description
2,5-Diaminopyridine is a disubstituted pyridine that can be prepared by the reduction of 5-nitro-2-aminopyridine using 10%Pd/C.
Properties of 2,5-Diaminopyridine
| Melting point: | 110.3°C |
| Boiling point: | 180 °C/12 mmHg (lit.) |
| Density | 1.1118 (rough estimate) |
| refractive index | 1.5340 (estimate) |
| Flash point: | 180°C/12mm |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| pka | 6.48(at 20℃) |
| CAS DataBase Reference | 4318-76-7(CAS DataBase Reference) |
Safety information for 2,5-Diaminopyridine
| 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 2,5-Diaminopyridine
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