Melting point: |
155-158 °C (lit.) |
Boiling point: |
273 °C (lit.) |
Density |
1.26 |
vapor pressure |
0.046Pa at 25℃ |
refractive index |
1.5560 (estimate) |
Flash point: |
156°C |
storage temp. |
2-8°C |
solubility |
H2O: soluble50mg/mL, clear, colorless |
form |
Crystalline Powder, Solid or Crystals |
pka |
9.114(at 25℃) |
color |
White to faint grey to light yellow |
Water Solubility |
Soluble in water(112 g/L at 20 deg C). Soluble in ethyl ether, benzene. Slightly soluble in ligroin. Very soluble in ethanol. Soluble in methanol, acetone, tetrahydrofuran, isopropanol, acetonitrile, N,N-dimethylformamide, dimethylsulfoxide, and ethanol. |
Merck |
14,3933 |
BRN |
105782 |
Stability: |
Hygroscopic |
InChIKey |
NUKYPUAOHBNCPY-UHFFFAOYSA-N |
LogP |
-0.76 at pH7.4 |
CAS DataBase Reference |
504-24-5(CAS DataBase Reference) |
NIST Chemistry Reference |
4-Pyridinamine(504-24-5) |
EPA Substance Registry System |
4-Aminopyridine (504-24-5) |