Naphthol naphtholum carboxylic acid, commonly known as NNC acid, belongs to a class of chemical compounds with unique properties. However, sometimes it becomes necessary to find alternative terms to describe this substance. Synonyms for NNC acid can include 2-Naphthol-1-carboxylic acid and α-Naphtholsäure in German. These terms refer to the same chemical compound but are used to provide clarity in different contexts or by individuals with diverse language preferences. Having synonyms for complex scientific terms like NNC acid allows for better communication and understanding among researchers, chemists, or those engaged in various scientific fields.