The Hydrazine,(4-bromo-2,3,5,6-tetrafluorophenyl)-, with the CAS registry number 2797-79-7, has the systematic name and IUPAC name of (4-bromo-2,3,5,6-tetrafluorophenyl)hydrazine. And the molecular formula of the chemical is C₆H₃BrF₄N₂.

The characteristics of Hydrazine,(4-bromo-2,3,5,6-tetrafluorophenyl)- are as followings: (1)ACD/LogP: 3.16; (2)# of Rule of 5 Violations: 0; (3)#H bond acceptors: 2; (4)#H bond donors: 3; (5)#Freely Rotating Bonds: 2; (6)Polar Surface Area: 6.48 Å²; (7)Index of Refraction: 1.571; (8)Molar Refractivity: 42.43 cm³; (9)Molar Volume: 129 cm³; (10)Polarizability: 16.82×10^-24cm³; (11)Surface Tension: 45 dyne/cm; (12)Density: 2.006 g/cm³; (13)Flash Point: 57 °C; (14)Enthalpy of Vaporization: 40.71 kJ/mol; (15)Boiling Point: 170.7 °C at 760 mmHg; (16)Vapour Pressure: 1.45 mmHg at 25°C. 

Uses of Hydrazine,(4-bromo-2,3,5,6-tetrafluorophenyl)-: It can react with perfluoro-5-aza-4-nonene to produce 1-(4-bromo-2,3,5,6-tetrafluoro-phenyl)-3,5-bis-heptafluoropropyl-1H-[1,2,4]triazole. This reaction will need reagent triethylamine, and the menstruum tetrahydrofuran. The reaction time is 5 hours with temperature of 0-50°C, and the yield is about 57%.

You should be cautious while dealing with this chemical. It irritates to eyes, respiratory system and skin, and it is also harmful by inhalation, in contact with skin and if swallowed. 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.

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: Fc1c(c(F)c(F)c(Br)c1F)NN
(2)InChI: InChI=1/C6H3BrF4N2/c7-1-2(8)4(10)6(13-12)5(11)3(1)9/h13H,12H2
(3)InChIKey: NQXNTMIIWYYOBI-UHFFFAOYAM