Term Name:	Durazol blue 4R (acid form)
Synonyms:	4-({4-[(6-anilino-1-hydroxy-3-sulfonaphthalen-2-yl)diazenyl]-5-methoxy-2-methylphenyl}diazenyl)-5-hydroxynaphthalene-2,7-disulfonic acid, direct blue 67 (acid form), direct blue 67 free acid, Durazol blue 4R free acid, NSC 47755
Definition:	A naphthalenesulfonic acid that is the free acid form of the dye Sirius red F3B (the trisodium salt).
Ontology:	ChEBI [CHEBI:88284]  ( EBI )