The Octahydropentalene-1,2-diol, with the CAS registry number 78430-44-1, is also known as Octahydro-1,2-pentalenediol. Its EINECS number is 278-908-3. This chemical's molecular formula is  C₈H₁₄O₂  and molecular weight is 142.2. What's more, its systematic name is 1,2,3,3a,4,5,6,6a-octahydropentalene-1,2-diol. 

Physical properties of Octahydropentalene-1,2-diol are: (1)ACD/LogP: 0.57; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.57; (4)ACD/LogD (pH 7.4): 0.57; (5)#H bond acceptors: 2; (6)#H bond donors: 2; (7)#Freely Rotating Bonds: 2; (8)Polar Surface Area: 40.46 Å²; (9)Index of Refraction: 1.565; (10)Molar Refractivity: 38.12 cm³; (11)Molar Volume: 116.9 cm³; (12)Polarizability: 15.11×10^-24 cm³; (13)Surface Tension: 44.7 dyne/cm; (14)Density: 1.216 g/cm³; (15)Flash Point: 143 °C; (16)Enthalpy of Vaporization: 61.22 kJ/mol; (17)Boiling Point: 288.4 °C at 760 mmHg; (18)Vapour Pressure: 0.000261 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: OC2CC1CCCC1C2O
(2)InChI: InChI=1/C8H14O2/c9-7-4-5-2-1-3-6(5)8(7)10/h5-10H,1-4H2
(3)InChIKey: RVTNKLDREGTHJJ-UHFFFAOYAM