The CAS register number of Pyridazine-4-carbaldehyde is 50901-42-3. It also can be called as 4-Pyridazinecarboxaldehyde. The molecular formula about this chemical is C₅H₄N₂O and the molecular weight is 108.1. This chemical may cause inflammation to the skin or other mucous membranes.

Physical properties about Pyridazine-4-carbaldehyde are: (1)ACD/LogP: -0.86; (2)ACD/BCF (pH 5.5): 1; (3)ACD/BCF (pH 7.4): 1; (4)ACD/KOC (pH 5.5): 4; (5)ACD/KOC (pH 7.4): 4; (6)#H bond acceptors: 3; (7)#Freely Rotating Bonds: 1; (8)Polar Surface Area: 42.85 Å²; (9)Index of Refraction: 1.581; (10)Molar Refractivity: 29.188 cm³; (11)Molar Volume: 87.547 cm³; (12)Polarizability: 11.571x10^-24cm³; (13)Surface Tension: 57.072 dyne/cm; (14)Density: 1.235 g/cm³; (15)Flash Point: 139.901 °C; (16)Enthalpy of Vaporization: 54.042 kJ/mol; (17)Boiling Point: 300.361 °C at 760 mmHg; (18)Vapour Pressure: 0.001 mmHg at 25 °C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=Cc1cnncc1
(2)InChI: InChI=1/C5H4N2O/c8-4-5-1-2-6-7-3-5/h1-4H
(3)InChIKey: BZORCBQGFKOHMY-UHFFFAOYAD
(4)Std. InChI: InChI=1S/C5H4N2O/c8-4-5-1-2-6-7-3-5/h1-4H
(5)Std. InChIKey: BZORCBQGFKOHMY-UHFFFAOYSA-N