The Benzenesulfonamide, 4-amino-N-(4-methoxyphenyl)-, with the CAS registry number 19837-74-2, is also known as [(4-Aminophenyl)sulfonyl](4-methoxyphenyl)amine. This chemical's molecular formula is C₁₃H₁₄N₂O₃S and molecular weight is 278.33. What's more, both its IUPAC name and systematic name are the same which is called 4-Amino-N-(4-methoxyphenyl)benzenesulfonamide. When you are dealing with this chemical, you should be very careful. This chemical may cause inflammation to the skin or other mucous membranes. 

Physical properties about Benzenesulfonamide, 4-amino-N-(4-methoxyphenyl)- are: (1) ACD/LogP: 1.51; (2) # of Rule of 5 Violations: 0; (3) ACD/LogD (pH 5.5): 1.51; (4) ACD/LogD (pH 7.4): 1.51; (5) ACD/BCF (pH 5.5): 8.27; (6) ACD/BCF (pH 7.4): 8.23; (7) ACD/KOC (pH 5.5): 157.9; (8) ACD/KOC (pH 7.4): 157.08; (9) #H bond acceptors: 5; (10) #H bond donors: 3; (11) #Freely Rotating Bonds: 4; (12) Polar Surface Area: 58.23 Å²; (13)Index of Refraction: 1.641; (14) Molar Refractivity: 73.91 cm³; (15) Molar Volume: 204.8 cm³; (16) Surface Tension: 60.7 dyne/cm; (17) Density: 1.358 g/cm³; (18) Flash Point: 242.5 °C; (19) Enthalpy of Vaporization: 74.14 kJ/mol; (20) Boiling Point: 477.4 °C at 760 mmHg; (21) Vapour Pressure: 2.8E-09 mmHg at 25 °C.

You can still convert the following datas into molecular structure:
(1) SMILES: O=S(=O)(Nc1ccc(OC)cc1)c2ccc(N)cc2
(2) InChI: InChI=1/C13H14N2O3S/c1-18-12-6-4-11(5-7-12)15-19(16,17)13-8-2-10(14)3-9-13/h2-9,15H,14H2,1H3
(3) InChIKey: PKCILPHWDZXVQT-UHFFFAOYAE