Term Name:	naphthalene blue black CS (acid form)
Synonyms:	4-amino-5-hydroxy-3-[(4-nitrophenyl)diazenyl]-6-[(4-sulfophenyl)diazenyl]naphthalene-2,7-disulfonic acid, acid black 41 (acid form), blauschwartz NSF (acid form)
Definition:	A bis(azo) compound that is naphthalene-2,7-disulfonic acid in which the hydrogens at positions 3, 4, 5, and 6 are replaced by (p-nitrophenyl)azo, amino, hydroxy, and (p-sulfophenyl)azo groups, respectively. The trisodium salt is the histological dye 'naphthalene blue black CS'.
Ontology:	ChEBI [CHEBI:88019]  ( EBI )