Chemical Properties
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)
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