The 1,2-Cyclopentanedicarboxylic anhydride , with the CAS registry number 5763-49-5, is also known as 1H-Cyclopenta[c]furan-1,3(3aH)-dione, tetrahydro-. Its EINECS number is 227-286-1. This chemical's molecular formula is C₇H₈O₃ and molecular weight is 140.14. What's more, its systematic name is tetrahydro-1H-cyclopenta[c]furan-1,3(3aH)-dione.

Physical properties of 1,2-Cyclopentanedicarboxylic anhydride are: (1)ACD/LogP: -0.32; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.32; (4)ACD/LogD (pH 7.4): -0.32; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 15.9; (8)ACD/KOC (pH 7.4): 15.9; (9)#H bond acceptors: 3; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 43.37 Å²; (13)Index of Refraction: 1.513; (14)Molar Refractivity: 32.2 cm³; (15)Molar Volume: 106.9 cm³; (16)Polarizability: 12.76×10^-24cm³; (17)Surface Tension: 45.5 dyne/cm; (18)Density: 1.309 g/cm³; (19)Flash Point: 140.4 °C; (20)Enthalpy of Vaporization: 52.85 kJ/mol; (21)Boiling Point: 289.2 °C at 760 mmHg; (22)Vapour Pressure: 0.00223 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C1OC(=O)C2CCCC12
(2)Std. InChI: InChI=1S/C7H8O3/c8-6-4-2-1-3-5(4)7(9)10-6/h4-5H,1-3H2
(3)Std. InChIKey: NMSRALOLNIBERV-UHFFFAOYSA-N