Most people can identify their first cousins: the children of their parentsâ brothers and sisters. Many, however, are hazy about any further familial connections, and a quick online search shows that people are often confused over kinship terms.
1 Paracetamol (acetaminophen) is an aromatic compound containing an OH (hydroxyl) functional group and a HN-CO-R (amide) functional group.2  Paracetamol (acetaminophen) is a weak acid. 3  Paracetamol (acetaminophen) is a white solid with a melting point of 170 o C which is slightly soluble in water. Paracetamol (acetaminophen) is widely used as an analgesic (pain reliever) and an antipyretic (for reducing fever). 2  The systematic IUPAC name for paracetamol (acetaminophen) is N -(4-hydroxyphenyl)ethanamide or N -(4-hydroxyphenyl)acetamide.
There are a number of functional groups structurally related to amides (and esters) that are. important constituents of drug molecules and biomacromolecules. Perhaps the most important of. these are the carbamates, ureas, imides and sulfonamides.