The CAS register number of 2-Pyridinecarboxaldehyde,5-hydroxy- is 31191-08-9. It also can be called as 5-Hydroxypicolinaldehyde and the IUPAC name about this chemical is 5-hydroxypyridine-2-carbaldehyde. The molecular formula about this chemical is C₆H₅NO₂ and the molecular weight is 123.1094. It belongs to the Nitrogen Cyclic Compounds.

Physical properties about 2-Pyridinecarboxaldehyde,5-hydroxy- are: (1)ACD/LogP: 0.84; (2)#H bond acceptors: 3; (3)#H bond donors: 1; (4)#Freely Rotating Bonds: 2; (5)Polar Surface Area: 39.19Ų; (6)Index of Refraction: 1.629; (7)Molar Refractivity: 32.97 cm³; (8)Molar Volume: 92.7 cm³; (9)Polarizability: 13.07x10^-24cm³; (10)Surface Tension: 63.1 dyne/cm; (11)Flash Point: 173.7 °C; (12)Enthalpy of Vaporization: 63.36 kJ/mol; (13)Boiling Point: 363.5 °C at 760 mmHg; (14)Vapour Pressure: 8.56E-06 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=Cc1ncc(O)cc1
(2)InChI: InChI=1/C6H5NO2/c8-4-5-1-2-6(9)3-7-5/h1-4,9H
(3)InChIKey: HSODMUBHOXGNNQ-UHFFFAOYAE
(4)Std. InChI: InChI=1S/C6H5NO2/c8-4-5-1-2-6(9)3-7-5/h1-4,9H
(5)Std. InChIKey: HSODMUBHOXGNNQ-UHFFFAOYSA-N