Term Name:	Biebrich scarlet (acid form)
Synonyms:	2-[(2-hydroxynaphthalen-1-yl)diazenyl]-5-[(4-sulfophenyl)diazenyl]benzene-1-sulfonic acid, acid red 66 (free acid form)
Definition:	An arenesulfonic acid that is m-[(4-sulfophenyl)diazenyl]benzene-1-sulfonic acid carrying a (2-hydroxynaphthalen-1-yl)diazenyl substituent at position 2. The disodium salt is the biological stain 'Biebrich scarlet'.
Ontology:	ChEBI [CHEBI:87187]  ( EBI )