Nevile and Winther's acid
noun
Ne·vile and Win·ther's acid
ˈnāvəl,
ˈvintə(r)z-
: a crystalline phenolic sulfonic acid HOC10H6SO3H made by sulfonation of alpha-naphthol and used as a dye intermediate; 1-naphthol-4-sulfonic acid
Word History
Etymology
after R.H.C. Nevile, 19th century chemist and Adolph Winther, 20th century German chemist