4-aminophenol
|4-a-mi-no-phen-ol|
🇺🇸
/fɔr əˈmiːnoʊ ˈfiːnəl/
🇬🇧
/fɔːr əˈmiːnəʊ ˈfiːnɒl/
amino group on phenol at position 4
Etymology
'4-aminophenol' originates from modern chemical nomenclature (International Union of Pure and Applied Chemistry), formed by combining the numeral '4' (denoting the para position), the prefix 'amino' (from 'amine') and the word 'phenol' (from 'phenyl' + the suffix '-ol').
'4-aminophenol' changed from older common names such as 'para-aminophenol' and the abbreviation 'p-aminophenol' and was later expressed in systematic form as '4-aminophenol' under standardized nomenclature.
Initially, names like 'para-aminophenol' described the relative position of the amino group informally; over time the systematic name '4-aminophenol' became the standard to specify the exact substitution pattern.
Meanings by Part of Speech
Noun 1
an aromatic organic compound (a phenol) in which an amino group is attached to the 4-position (para position) of the benzene ring; chemical formula C6H7NO. Used as a photographic developer and as an intermediate in the manufacture of paracetamol (acetaminophen) and other chemicals.
4-aminophenol is used as an intermediate in the synthesis of paracetamol.
Synonyms
Last updated: 2025/08/28 05:33