MeSH

structure in first source

Date introduced: June 2, 2009

Inorganic or organic compounds that contain sulfur as an integral part of the molecule.

Year introduced: 1998

A group of compounds that contain the structure SO2NH2.

Year introduced: SULFONAMIDE MIXTURES was heading 1963-1979

Aromatic hydrocarbons that contain extended fused-ring structures.

Year introduced: 2017(1996)

Compounds which contain two or more rings in their structure.

Year introduced: 2005(1974)

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.

Year introduced: 1998

Two-ring crystalline hydrocarbons isolated from coal tar. They are used as intermediates in chemical synthesis, as insect repellents, fungicides, lubricants, preservatives, and, formerly, as topical antiseptics.

Organic compounds composed exclusively of carbon and hydrogen forming a closed ring that may be either alicyclic or aromatic.

Year introduced: 1998

Organic compounds containing carbon and hydrogen in the form of an unsaturated, usually hexagonal ring structure. The compounds can be single ring, or double, triple, or multiple fused rings.

Year introduced: 1998

Organic compounds that primarily contain carbon and hydrogen atoms with the carbon atoms forming a linear or circular structure.

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)