Term Name:	Pontamine sky blue 5B(4-)
Synonyms:	3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(diazene-2,1-diyl)]bis(5-amino-4-hydroxynaphthalene-2,7-disulfonate), Pontamine sky blue 5B tetraanion
Definition:	An organosulfonate oxoanion obtained by deprotonation of the sulfonic acid groups of Pontamine sky blue 5B (acid form).
Ontology:	ChEBI [CHEBI:88196]  ( EBI )