The CAS registry number of Benzenesulfonamide,3,4-dichloro- is 23815-28-3. This chemical is also named as NSC 31188. In addition, its molecular formula is C₆H₅Cl₂NO₂S and molecular weight is 226.0804. Its systematic name and IUPAC name are the same which is called 3,4-dichlorobenzenesulfonamide.

Physical properties about Benzenesulfonamide,3,4-dichloro- are: (1)ACD/LogP: 1.68; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.68; (4)ACD/LogD (pH 7.4): 1.68; (5)ACD/BCF (pH 5.5): 11.14; (6)ACD/BCF (pH 7.4): 11.07; (7)ACD/KOC (pH 5.5): 195.36; (8)ACD/KOC (pH 7.4): 194.22; (9)#H bond acceptors: 3; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 1; (12)Index of Refraction: 1.602; (13)Molar Refractivity: 48.84 cm³; (14)Molar Volume: 142.2 cm³; (15)Surface Tension: 54.8 dyne/cm; (16)Density: 1.588 g/cm³; (17)Flash Point: 185.7 °C; (18)Enthalpy of Vaporization: 63.2 kJ/mol; (19)Boiling Point: 383.4 °C at 760 mmHg.

You can still convert the following datas into molecular structure:
(1)SMILES: Clc1ccc(cc1Cl)S(=O)(=O)N
(2)InChI: InChI=1/C6H5Cl2NO2S/c7-5-2-1-4(3-6(5)8)12(9,10)11/h1-3H,(H2,9,10,11)
(3)InChIKey: ILLSOONBCBUBOD-UHFFFAOYAW