Wiktionary
naphthalenesulfonate
n. (context chemistry English) Any of a class of derivatives of sulfonic acid which contain a naphthalene functional unit.
Wikipedia
Naphthalenesulfonate
Naphthalenesulfonates are a derivative of sulfonic acid which contain a naphthalene functional unit.
Examples include:
- amaranth dye
- amido black
- armstrong's acid
- congo red
- evans blue
- suramin
- trypan blue