The IUPAC name of this chemical is 4-Ethyl-1,3-dioxolan-2-one. With the CAS registry number 4437-85-8, it is also named as 1,2-butylene carbonate. In addition, the molecular formula is C₅H₈O₃ and the molecular weight is 116.12. It is a kind of clear colorless liquid and should be stored in a cool and dry place. And it can be used as a chemical reagent and organic intermediate.

Physical properties about this chemical are: (1)ACD/LogP: 0.13; (2)ACD/LogD (pH 5.5): 0.13; (3)ACD/LogD (pH 7.4): 0.13; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 27.91; (7)ACD/KOC (pH 7.4): 27.91; (8)#H bond acceptors: 3; (9)#Freely Rotating Bonds: 1; (10)Polar Surface Area: 35.53 Å²; (11)Index of Refraction: 1.419; (12)Molar Refractivity: 26.5 cm³; (13)Molar Volume: 104.8 cm³; (14)Polarizability: 10.5 ×10^-24cm³; (15)Surface Tension: 29.5 dyne/cm; (16)Density: 1.107 g/cm³; (17)Flash Point: 128.4 °C; (18)Enthalpy of Vaporization: 47.56 kJ/mol; (19)Boiling Point: 238.7 °C at 760 mmHg; (20)Vapour Pressure: 0.0417 mmHg at 25°C.

Preparation of 4-Ethyl-1,3-dioxolan-2-one: it can be prepared by ethyloxirane and carbon dioxide. This reaction will need reagent MgO and solvent dimethylformamide. The reaction time is 12 hours at reaction temperature of 135 °C. And the reaction pressure is 14710.2 Pa. In addition, The yield is about 72%.

When you are using this chemical, please be cautious about it as the following:
During using it, you should avoid contact with skin and eyes.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C1OCC(O1)CC
(2)InChI: InChI=1/C5H8O3/c1-2-4-3-7-5(6)8-4/h4H,2-3H2,1H3
(3)InChIKey: ZZXUZKXVROWEIF-UHFFFAOYAB

The toxicity data is as follows: