The CAS registry number of 2,4(3H,5H)-Furandione is 4971-56-6. Its EINECS registry number is 225-617-4. The IUPAC name is 2-hydroxy-2H-furan-5-one. In addition, the molecular formula is C₄H₄O₃ and the molecular weight is 100.07. It is also called tetrahydrofuran-2,4-dione. What's more, it should be stored in sealed container, and put in a cool and dry place.

Physical properties about 2,4(3H,5H)-Furandione are: (1)ACD/LogP: -2.03; (2)ACD/LogD (pH 5.5): -2.03; (3)ACD/LogD (pH 7.4): -2.03; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 1.87; (7)ACD/KOC (pH 7.4): 1.87; (8)#H bond acceptors: 3; (9)Polar Surface Area: 43.37 Å²; (10)Index of Refraction: 1.47; (11)Molar Refractivity: 20.31 cm³; (12)Molar Volume: 72.7 cm³; (13)Polarizability: 8.05 ×10^-24cm³; (14)Surface Tension: 47.7 dyne/cm; (15)Density: 1.375 g/cm³; (16)Flash Point: 151.1 °C; (17)Enthalpy of Vaporization: 56.63 kJ/mol; (18)Boiling Point: 324.3 °C at 760 mmHg; (19)Vapour Pressure: 0.000248 mmHg at 25 °C.

Uses of 2,4(3H,5H)-Furandione: it can react with 2-amino-benzaldehyde to get 3H-furo[3,4-b]quinolin-1-one. This reaction will need solvent ethanol. The yield is about 80% with ambient temperature.

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin. When you are using it, wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C1COC(=O)C1
(2)InChI: InChI=1/C4H4O3/c5-3-1-4(6)7-2-3/h1-2H2
(3)InChIKey: JCGNDDUYTRNOFT-UHFFFAOYAI