Quinoxaline,2,3,6,7-tetramethyl-

The Quinoxaline,2,3,6,7-tetramethyl-, with the CAS registry number 6957-19-3, has the systematic name of 2,3,6,7-tetramethylquinoxaline. It is a kind of organics, and should be stored in the dry and cool environment. And the molecular formula of the chemical is C₁₂H₁₄N₂.

The characteristics of Quinoxaline,2,3,6,7-tetramethyl- are as followings: (1)ACD/LogP: 3.14; (2)# of Rule of 5 Violations: 0; (3)#H bond acceptors: 2; (4)#H bond donors: 0; (5)#Freely Rotating Bonds: 0; (6)Polar Surface Area: 25.78 Å²; (7)Index of Refraction: 1.595; (8)Molar Refractivity: 59.57 cm³; (9)Molar Volume: 175 cm³; (10)Polarizability: 23.61×10^-24cm³; (11)Surface Tension: 43.6 dyne/cm; (12)Density: 1.063 g/cm³; (13)Flash Point: 124.1 °C; (14)Enthalpy of Vaporization: 52.02 kJ/mol; (15)Boiling Point: 301.7 °C at 760 mmHg; (16)Vapour Pressure: 0.00185 mmHg at 25°C.

Preparation of Quinoxaline,2,3,6,7-tetramethyl-: This chemical can be prepared by 4,5-dimethyl-benzene-1,2-diamine and butane-2,3-dione. The reaction will need menstruum ethanol. And the yield is about 70%. 

Uses of Quinoxaline,2,3,6,7-tetramethyl-: It can react with trimethyloxonium; tetrafluoroborate to produce 1,2,3,4,6,7-Hexamethylchinoxalinium-bis(tetrafluoroborat). This reaction will need menstruum 1,2-dichloro-ethane. The reaction time is 1 hour with heating, and the yield is about 51%. 

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: n1c2cc(c(cc2nc(c1C)C)C)C
(2)InChI: InChI=1/C12H14N2/c1-7-5-11-12(6-8(7)2)14-10(4)9(3)13-11/h5-6H,1-4H3
(3)InChIKey: MRHHHYZFDDQAQL-UHFFFAOYAE