The CAS register number of 1,5,6,7-Tetrahydro-4-hydroxy-2H-cyclopenta[b]pyridin-2-one is 55618-81-0. It also can be called as 2H-Cyclopenta[b]pyridin-2-one,1,5,6,7-tetrahydro-4-hydroxy- and the systematic name about this chemical is 2-hydroxy-1,5,6,7-tetrahydrocyclopenta[b]pyridin-4-one.

Physical properties about 1,5,6,7-Tetrahydro-4-hydroxy-2H-cyclopenta[b]pyridin-2-one are: (1)ACD/LogP: -0.17; (2)ACD/LogD (pH 5.5): -0.72; (3)ACD/LogD (pH 7.4): -2.46; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 5.39; (7)ACD/KOC (pH 7.4): 1; (8)#H bond acceptors: 3; (9)#H bond donors: 2; (10)#Freely Rotating Bonds: 1; (11)Polar Surface Area: 29.54Ų; (12)Index of Refraction: 1.62; (13)Molar Refractivity: 39.43 cm³; (14)Molar Volume: 112.2 cm³; (15)Polarizability: 15.63x10^-24cm³; (16)Surface Tension: 55.1 dyne/cm; (17)Enthalpy of Vaporization: 65.65 kJ/mol; (18)Boiling Point: 324.4 °C at 760 mmHg; (19)Vapour Pressure: 1.91E-05 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C\1\C2=C(/NC(/O)=C/1)CCC2
(2)InChI: InChI=1/C8H9NO2/c10-7-4-8(11)9-6-3-1-2-5(6)7/h4H,1-3H2,(H2,9,10,11)
(3)InChIKey: SCDZKHFXHRNLQM-UHFFFAOYAC
(4)Std. InChI: InChI=1S/C8H9NO2/c10-7-4-8(11)9-6-3-1-2-5(6)7/h4H,1-3H2,(H2,9,10,11)
(5)Std. InChIKey: SCDZKHFXHRNLQM-UHFFFAOYSA-N