title: Quirks of dye nomenclature. 2. Congo red.
abstract: The history, origin, identity, chemistry and uses of Congo red are described. Originally patented in 1884, Congo red soon found applications in dyeing cotton, as a pH indicator for chemists and as a biological stain. Unlike the majority of the 19th century synthetic dyes, it still is available commercially.
authors: 59 Swiss Avenue, Watford WD18 7LL England , UK.
authors: C J
authors: CJ
authors: Cooksey
mesh_terms: D003224:Congo Red / Q000737:chemistry; D015394:Molecular Structure; D010330:Patents as Topic; D009626:Terminology as Topic
chemical_list: D003224:Congo Red
keywords: Congo red; direct dye; history; manufacture; patents