4-Bromo-2,3,5,6-tetrafluoropyridine

The Pyridine, 4-bromo-2, 3, 5, 6-tetrafluoro-, with the CAS registry number 3511-90-8, is also known as 2, 3, 5, 6-Tetrafluoro-4-bromopyridine. It belongs to the product categories of Pharmacetical; Halides; Pyridines; C5 Heterocyclic Building Blocks; Halogenated Heterocycles; Heterocyclic Building Blocks. This chemical's molecular formula is C₅BrF₄N and molecular weight is 229.96. What's more, its IUPAC name is 4-Bromo-2, 3, 5, 6-tetrafluoropyridine. In addition, it must be stored in airtight containers and placed in a cool place. Meanwhile, it should be kept away from strong oxidant, light, ignition source.

Physical properties about Pyridine, 4-bromo-2, 3, 5, 6-tetrafluoro- are: (1)ACD/LogP: 1.68; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.68; (4)ACD/LogD (pH 7.4): 1.68; (5)ACD/BCF (pH 5.5): 11.21; (6)ACD/BCF (pH 7.4): 11.21; (7)ACD/KOC (pH 5.5): 196.29; (8)ACD/KOC (pH 7.4): 196.29; (9)#H bond acceptors: 1; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 12.89 Å²; (13)Index of Refraction: 1.465; (14)Molar Refractivity: 32 cm³; (15)Molar Volume: 115.6 cm³; (16)Polarizability: 12.68×10^-24 cm³; (17)Surface Tension: 34.5 dyne/cm; (18)Density: 1.987 g/cm³; (19)Flash Point: 62.8 °C; (20)Enthalpy of Vaporization: 35.66 kJ/mol; (21)Boiling Point: 134.5 °C at 760 mmHg; (22)Vapour Pressure: 9.95 mmHg at 25 °C.

Uses of Pyridine, 4-bromo-2, 3, 5, 6-tetrafluoro-: it is used to produce other chemicals. For example, it is used to produce 1, 4-Bis(2', 3', 5', 6'-tetrafluoropyridylethynyl)tetrafluorobenzene by heating. This reaction needs reagents PdCl₂(PPh₃)₂, CuI and Et₃N. The reaction time is 12 hours. The yield is about 20 %.

When you are using this chemical, please be cautious about it as the following:
As a chemical, it is irritating to eyes, respiratory system and skin. In addition, this chemical may cause inflammation to the skin or other mucous membranes. During 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: Brc1c(F)c(F)nc(F)c1F
(2) InChI: InChI=1/C5BrF4N/c6-1-2(7)4(9)11-5(10)3(1)8
(3) InChIKey: YZCGGIUJABHGRQ-UHFFFAOYAO