3,4-Diaminopyridine [ 54-96-6 ]
                - Appearance
 - brownish to brown-grey crystalline powder
 
- Melting Point
 - 216-218(lit.) ( ℃ )
 
- Boiling Point
 - 204.9 ( ℃ )
 
| mp | 216-218 °C(lit.) | 
| Fp | 240 °C | 
| Water Solubility | 24 g/L (20 ºC) | 
| Merck | 14,2986 | 
| Chemical Properties | brownish to brown-grey crystalline powder |