When these groups are both attached to the same carbon, the acid is an -amino acid. Compare with amine . A metal ion complex containing ammonia as a ligand . A hydrocarbon that contains at least one aromatic ring . aromatic ring. A compound containing an aromatic ring .
Aromatic compounds have strong, characteristic odors.
A molecular fragment or group attached to a molecule by an atom that is on an aromatic ring . N-Ar', where Ar and Ar' indicate substituted aromatic rings . Compounds containing the azo compounds are often intensely colored and are economically important as dyes. Methyl orange is an example of an azo dye. A divalent group consisting of a carbon atom with a double-bond to oxygen.