35203-91-9

Basic information

• Product Name: 8-Quinolinesulfonamide
• Synonyms: 8-Quinolinesulfonamide;8-SULPHONAMIDOQUINOLINE;quinoline-8-sulfonamide;8-Sulfonamidoquinoline;Ccris 7819;Quinoline-8-sulfonic acid amide
• CAS NO: 35203-91-9
• Molecular Formula: C₉H₈N₂O₂S
• Molecular Weight: 208.24
• Mol File: 35203-91-9.mol
• Article Data: 4

Chemical Properties

• Melting Point: 183-184 °C(Solv: ethanol (64-17-5); water (7732-18-5))
• Boiling Point: 442.1°Cat760mmHg
• Flash Point: 221.2°C
• Appearance: /
• Density: 1.429g/cm³
• Vapor Pressure: 5.16E-08mmHg at 25°C
• Refractive Index: 1.671
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• PKA: 9.57±0.30(Predicted)
• CAS DataBase Reference: 8-Quinolinesulfonamide(CAS DataBase Reference)
• NIST Chemistry Reference: 8-Quinolinesulfonamide(35203-91-9)
• EPA Substance Registry System: 8-Quinolinesulfonamide(35203-91-9)

Safety Data

• HazardClass: IRRITANT
• Hazardous Substances Data: 35203-91-9(Hazardous Substances Data)

Usage

General Description

8-Quinolinesulfonamide, also known as 8-Sulfamoylquinoline, is a chemical substance from the category of sulfonamides. As an organic compound, it is essential to note that this compound consists of carbon, hydrogen, and a sulphonic acid group bound to the nitrogen-containing ringed structure of quinoline. Its molecular formula is C9H8N2O3S and known for its potential antimicrobial properties. The 8-Quinolinesulfonamide is at its preliminary stage in terms of research and clinical applications and may show promising therapeutic properties in the future. However, it must be handled with care as per safety guidelines due to its potentially hazardous properties. It is commonly used in the field of organic synthesis and pharmaceuticals.

InChI:InChI=1/C9H8N2O2S/c10-14(12,13)8-5-1-3-7-4-2-6-11-9(7)8/h1-6H,(H2,10,12,13)

Upstream product

• 61081-36-5 8-quinolinesulfinic acid sodium salt 
• 18704-37-5 quinoline-8-sulfonyl chloride 

Relevant articles and documents

Ionization constants of all seven positional isomers of quinolinesulfonamides and quinoline-N,N-dimethylsulfonamides

The pKa values of isomeric sulfamoylquinolines 2a-8a and N,N-dimethylsulfamoylquinolines 2b-8b were determined by means of a UV-VIS spectroscopic method that uses absorbance diagrams, at constant ionic strength (0.15 M). For sulfamoylquinolines 2a-8a two pKa values - for basic function (Nring: -0.31 to 3.36) and for acid function (SO 2NH2 group: 8.89-10.34) but only one in the case of N,N-dimethylsulfamoylquinolines 2b-8b (-0.05 to 3.07) - were obtained. The full geometry optimization in the 6-311 + G(d) basis set and the NBO population analysis were performed. Correlation between the experimentally determined and theoretically calculated (Sparc program) of pKa values as well as the differences between the calculated NBO population values for neutral and ionic forms were found for compounds 2a-7a and 2b-8b.

Compounds for the Treatment of Hepatitis C

The invention encompasses compounds of formula I as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and are useful in treating those infected with HCV.