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Sulfonamide is a functional group (a part of a molecule) that is the basis of several groups of drugs, which are called sulphonamides, sulfa drugs or sulpha drugs. The original antibacterial sulfonamides are synthetic (nonantibiotic) antimicrobial agents that contain the sulfonamide group. Some sulfonamides are also devoid of antibacterial ...
A sulfonamide (compound) is a chemical compound that contains this group. The general formula is R−SO2NR'R" or R−S (=O)2−NR'R", where each R is some organic group; for example, "methanesulfonamide" (where R = methane, R' = R" = hydrogen) is CH3SO2NH2. Any sulfonamide can be considered as derived from a sulfonic acid by replacing a ...
List of sulfonamides; Author of The Demon Under the Microscope, a history of the discovery of the sulfa drugs; A History of the Fight Against Tuberculosis in Canada (Chemotherapy) Presentation speech, Nobel Prize in Physiology and Medicine, 1939; The History of WW II Medicine "Five Medical Miracles of the Sulfa Drugs".
Chemical and physical properties. [edit] Laboratory synthesized sulfanilamide. Sulfanilamide is a yellowish-white or white crystal or fine powder. It has a density of 1.08 g/cm 3 and a melting point of 164.5-166.5 °C. The pH of a 0.5% aqueous solution of Sulfanilamide is 5.8 to 6.1. It has a λ max of 255 and 312 nm.
Prontosil is an anti bacterial drug of the sulfonamide group. It has a relatively broad effect against gram-positive cocci but not against enterobacteria. One of the earliest antimicrobial drugs, it was widely used in the mid-20th century but is little used today because better options now exist. The discovery and development of this first ...
Fields. Bacteriology. Gerhard Johannes Paul Domagk (German pronunciation: [ˈɡeːɐ̯haʁt ˈdoːmak] ⓘ; 30 October 1895 – 24 April 1964) was a German pathologist and bacteriologist. He is credited with the discovery of sulfonamidochrysoidine (KL730) as an antibiotic for which he received the 1939 Nobel Prize in Physiology or Medicine.
In 1937, S. E. Massengill Company, a pharmaceutical manufacturer, created an oral preparation of sulfanilamide using diethylene glycol (DEG) as the solvent or excipient, and called the preparation "Elixir Sulfanilamide". [3] DEG is poisonous to humans and other mammals, but Harold Watkins, the company's chief pharmacist and chemist, was not ...
AHFS/Drugs.com: International Drug Names: ATC code: J01ED08 S01AB05 QJ01EQ08 ; ... Sulfaphenazole (or sulfafenazol) is a sulfonamide antibacterial. [1]