The 2,5-Furandione,3,3,4,4-tetrafluorodihydro-, with the CAS registry number 699-30-9 and EINECS registry number 211-832-0, has the systematic name of 3,3,4,4-tetrafluorodihydrofuran-2,5-dione. And the molecular formula of the chemical is C₄F₄O₃.

The characteristics of 2,5-Furandione,3,3,4,4-tetrafluorodihydro- are as followings: (1)ACD/LogP: -0.33; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.33; (4)ACD/LogD (pH 7.4): -0.33; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 15.79; (8)ACD/KOC (pH 7.4): 15.79; (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: 1.344; (14)Molar Refractivity: 20.98 cm³; (15)Molar Volume: 98.8 cm³; (16)Polarizability: 8.31×10^-24cm³; (17)Surface Tension: 24.7 dyne/cm; (18)Density: 1.74 g/cm³; (19)Enthalpy of Vaporization: 29.75 kJ/mol; (20)Boiling Point: 54.5 °C at 760 mmHg; (21)Vapour Pressure: 244 mmHg at 25°C.  

Preparation of 2,5-Furandione,3,3,4,4-tetrafluorodihydro-: This chemical can be prepared by carbonochloridic hypochlorous thioanhydride and tetrafluoro-succinic acid. The reaction will need reagent pyridine, and the menstruum diethyl ether. The reaction temperature of 25°C, and the yield is about 100%.

You should be cautious while dealing with this chemical. It irritates to eyes, respiratory system and skin, and it is also toxic by inhalation. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection, and if in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice; In case of accident or if you feel unwell, seek medical advice immediately (show label where possible).

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: FC1(F)C(=O)OC(=O)C1(F)F
(2)InChI: InChI=1/C4F4O3/c5-3(6)1(9)11-2(10)4(3,7)8
(3)InChIKey: ZLVLNNCBGQYRAB-UHFFFAOYAQ