The CAS register number of 2H-Indazole,3-chloro-2,5-dinitro- is 68159-06-8. The IUPAC name about this chemical is  3-chloro-2,5-dinitroindazole. The molecular formula about this chemical is C₇H₃ClN₄O₄ and the molecular weight is 242.57822.

Physical properties about 2H-Indazole,3-chloro-2,5-dinitro- are: (1)ACD/LogP: 2.30; (2)#H bond acceptors: 8; (3)#Freely Rotating Bonds: 2; (4)Polar Surface Area: 109.46 Å²; (5)Index of Refraction: 1.793; (6)Molar Refractivity: 52.63 cm³; (7)Molar Volume: 123.8 cm³; (8)Polarizability: 20.86x10^-24cm³; (9)Surface Tension: 96.9 dyne/cm; (10)Density: 1.95 g/cm³; (11)Flash Point: 254.7 °C; (12)Enthalpy of Vaporization: 76.56 kJ/mol; (13)Boiling Point: 497.6 °C at 760 mmHg; (14)Vapour Pressure: 4.88E-10 mmHg at 25 °C.

You can still convert the following datas into molecular structure:
(1)SMILES: [O-][N+](=O)c2cc1c(nn(c1Cl)[N+]([O-])=O)cc2
(2)InChI: InChI=1/C7H3ClN4O4/c8-7-5-3-4(11(13)14)1-2-6(5)9-10(7)12(15)16/h1-3H
(3)InChIKey: TZUUMLAKXRSPRV-UHFFFAOYAT
(4)Std. InChI: InChI=1S/C7H3ClN4O4/c8-7-5-3-4(11(13)14)1-2-6(5)9-10(7)12(15)16/h1-3H
(5)Std. InChIKey: TZUUMLAKXRSPRV-UHFFFAOYSA-N