The 6-Quinoxalinecarbonylchloride, with the CAS registry number 258503-93-4, is also known as Quinoxaline-6-carbonyl chloride. It belongs to the product category of Acidhalide. This chemical's molecular formula is C₉H₅ClN₂O and molecular weight is 192.6. 

Physical properties about 6-Quinoxalinecarbonylchloride are: (1)ACD/LogP: 1.29; (2)#of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.29; (4)ACD/LogD (pH 7.4): 1.29; (5)ACD/BCF (pH 5.5): 5.61; (6)ACD/BCF (pH 7.4): 5.61; (7)ACD/KOC (pH 5.5): 119.62; (8)ACD/KOC (pH 7.4): 119.62; (9)#H bond acceptors: 3; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 42.85 Å²; (13)Index of Refraction: 1.662; (14)Molar Refractivity: 50.52 cm³; (15)Molar Volume: 136.4 cm³; (16)Surface Tension: 62.3 dyne/cm; (17)Density: 1.411 g/cm³; (18)Flash Point: 150 °C; (19)Enthalpy of Vaporization: 56.64 kJ/mol; (20)Boiling Point: 324.4 °C at 760 mmHg; (21)Vapour Pressure: 0.000246 mmHg at 25 °C; (22)Melting Point: 119 °C.

When you are dealing with this chemical, you should be very careful. This chemical may destroy living tissue on contact. And it may cause burns. Therefore, you should wear suitable protective clothing, gloves and eye/face protection. And in case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1) SMILES: ClC(=O)c1cc2nccnc2cc1
(2) InChI: InChI=1/C9H5ClN2O/c10-9(13)6-1-2-7-8(5-6)12-4-3-11-7/h1-5H
(3) InChIKey: UTEQROVYZDJSOO-UHFFFAOYAJ