Warning: The NCBI web site requires JavaScript to function. more...
An official website of the United States government
The .gov means it's official. Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.
The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.
N-(2,6-difluorophenyl)-5-methyl(1,2,4)-triazol(1,5-a)pyrimidine-2-sulfonamide [Supplementary Concept]
Date introduced: April 1, 2003
Sulfur Compounds
Inorganic or organic compounds that contain sulfur as an integral part of the molecule.
Year introduced: 1998
Sulfones
Sulfonamides
A group of compounds that contain the structure SO2NH2.
Year introduced: SULFONAMIDE MIXTURES was heading 1963-1979
Pyrimidines
A family of 6-membered heterocyclic compounds occurring in nature in a wide variety of forms. They include several nucleic acid constituents (CYTOSINE; THYMINE; and URACIL) and form the basic structure of the barbiturates.
Year introduced: THONZYLAMINE was heading 1972-1984 (Prov 1972)
Organic Chemicals
A broad class of substances containing carbon and its derivatives. Many of these chemicals will frequently contain hydrogen with or without oxygen, nitrogen, sulfur, phosphorus, and other elements. They exist in either carbon chain or carbon ring form.
Heterocyclic Compounds, 1-Ring
Organic compounds that contain a ring structure made up of carbon and one or more additional elements such as nitrogen and oxygen.
Heterocyclic Compounds
Cyclic compounds that include atoms other than carbon in their ring structure.
Amides
Organic compounds containing the -CO-NH2 radical. Amides are derived from acids by replacement of -OH by -NH2 or from ammonia by the replacement of H by an acyl group. (From Grant and Hackh's Chemical Dictionary, 5th ed)