The 4-Hydrazinopyridine, with the cas registry number 27256-91-3, is also called pyridine, 4-hydrazinyl-, and its IUPAC name is pyridin-4-ylhydrazine. The molecular formula of the chemical is C₅H₇N₃.

The characteristics of this chemical are as followings: (1)ACD/LogP: -0.24; (2)# of Rule of 5 Violations: 0 ; (3)ACD/BCF (pH 5.5): 1; (4)ACD/BCF (pH 7.4): 1; (5)ACD/KOC (pH 5.5): 1; (6)ACD/KOC (pH 7.4): 4.9; (7)#H bond acceptors: 3; (8)#H bond donors: 3; (9)#Freely Rotating Bonds: 2; (10)Polar Surface Area: 19.37 Å²; (11)Index of Refraction: 1.657; (12)Molar Refractivity: 32.85 cm³; (13)Molar Volume: 89.2 cm³; (14)Polarizability: 13.02×10^-24cm³; (15)Surface Tension: 61 dyne/cm; (16)Density: 1.222 g/cm³; (17)Flash Point: 127 °C; (18)Enthalpy of Vaporization: 52.55 kJ/mol; (19)Boiling Point: 286.4 °C at 760 mmHg; (20)Vapour Pressure: 0.00265 mmHg at 25°C.
 
Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: n1ccc(NN)cc1
(2)InChI: InChI=1/C5H7N3/c6-8-5-1-3-7-4-2-5/h1-4H,6H2,(H,7,8)
(3)InChIKey: KRTLKPFLTASKCG-UHFFFAOYAQ