Term Name:	Ponceau S(4-)
Synonyms:	3-hydroxy-4-({2-sulfonato-4-[(4-sulfonatophenyl)diazenyl]phenyl}diazenyl)naphthalene-2,7-disulfonate, Ponceau S tetraanion
Definition:	An organosulfonate oxoanion obtained by deprotonation of the sulfo groups of Ponceau S.
Ontology:	ChEBI [CHEBI:90323]  ( EBI )