The CAS registry number of 5-Cyclopentyl-5-ethyl-imidazolidine-2,4-dione is 6969-84-2. The IUPAC name is 5-Cyclopentyl-5-ethylimidazolidine-2,4-dione. In addition, the formula is C₁₀H₁₆N₂O₂ and the molecular weight is 196.2462. It should be stored in a cool environment.

Physical properties about this chemical are: (1)ACD/LogP: 1.37; (2)# of Rule of 5 Violations: 0 ; (3)#H bond acceptors: 4; (4)#H bond donors: 2; (5)#Freely Rotating Bonds: 2; (6)Polar Surface Area: 40.62 Å²; (7)Index of Refraction: 1.505; (8)Molar Refractivity: 51.12 cm³; (9)Molar Volume: 172.1 cm³; (10)Polarizability: 20.26 ×10^-24cm³; (11)Surface Tension: 39.8 dyne/cm; (12)Density: 1.14 g/cm³.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C1NC(=O)NC1(CC)C2CCCC2
(2)InChI: InChI=1/C10H16N2O2/c1-2-10(7-5-3-4-6-7)8(13)11-9(14)12-10/h7H,2-6H2,1H3,(H2,11,12,13,14)
(3)InChIKey: IZEKSBWGLBFASZ-UHFFFAOYAJ