The 4-Chloro-N-methyl-3-nitrobenzenesulfonamide with cas registry number of 137-48-4,  has the systematic name of 4-chloro-N-methyl-3-nitrobenzenesulfonamide. Its IUPAC name is also 4-chloro-N-methyl-3-nitrobenzenesulfonamide.

Physical properties about this chemical are: (1)ACD/LogP: 1.93; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.93; (4)ACD/LogD (pH 7.4): 1.93; (5)ACD/BCF (pH 5.5): 17.35; (6)ACD/BCF (pH 7.4): 17.32; (7)ACD/KOC (pH 5.5): 268.4; (8)ACD/KOC (pH 7.4): 267.85; (9)#H bond acceptors: 6; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 91.58 Å²; (13)Index of Refraction: 1.582; (14)Molar Refractivity: 54.7 cm³; (15)Molar Volume: 163.8 cm³; (16)Polarizability: 21.68×10^-24cm³; (17)Surface Tension: 54.8 dyne/cm; (18)Enthalpy of Vaporization: 64.22 kJ/mol; (19)Vapour Pressure: 2.29E-06 mmHg at 25°C.

You can still convert the following datas into molecular structure: 
(1)SMILES: O=[N+]([O-])c1cc(ccc1Cl)S(=O)(=O)NC;
(2)InChI: InChI=1/C7H7ClN2O4S/c1-9-15(13,14)5-2-3-6(8)7(4-5)10(11)12/h2-4,9H,1H3;
(3)InChIKey: UMNGEAKUUOJPAX-UHFFFAOYAB;
(4)Std. InChI: InChI=1S/C7H7ClN2O4S/c1-9-15(13,14)5-2-3-6(8)7(4-5)10(11)12/h2-4,9H,1H3;
(5)Std. InChIKey: UMNGEAKUUOJPAX-UHFFFAOYSA-N