The 2-Cyclopenten-1-one, 4-hydroxy-, with the CAS registry number 61305-27-9, is also known as 4-Hydroxycyclopentenone. This chemical's molecular formula is C₅H₆O₂ and molecular weight is 98.0999. What's more, its systematic name is 4-Hydroxycyclopent-2-en-1-one.

Physical properties about 2-Cyclopenten-1-one, 4-hydroxy- are: (1)ACD/LogP: -1.49; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -1.49; (4)ACD/LogD (pH 7.4): -1.49; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 3.68; (8)ACD/KOC (pH 7.4): 3.68; (9)#H bond acceptors: 2; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 26.3 Å²; (13)Index of Refraction: 1.559; (14)Molar Refractivity: 24.38 cm³; (15)Molar Volume: 75.4 cm³; (16)Polarizability: 9.66×10^-24 cm³; (17)Surface Tension: 58 dyne/cm; (18)Density: 1.299 g/cm³; (19)Flash Point: 99.9 °C; (20)Enthalpy of Vaporization: 55.86 kJ/mol; (21)Boiling Point: 243.7 °C at 760 mmHg; (22)Vapour Pressure: 0.00535 mmHg at 25 °C.

When you are using this chemical, please be cautious about it as the following:
As a chemical, it is irritating to eyes. In addition, this chemical may cause damage to health. Besides, this chemical is harmful if swallowed. During using it, you should wear suitable protective clothing.

You can still convert the following datas into molecular structure:
(1) SMILES: O=C1\C=C/C(O)C1
(2) InChI: InChI=1/C5H6O2/c6-4-1-2-5(7)3-4/h1-2,4,6H,3H2
(3) InChIKey: DHNDDRBMUVFQIZ-UHFFFAOYAB