Description
Indigo Carmine, Reagent, ACS, also known as 5,5′-indigodisulfonic acid sodium salt, is a pH indicator. As an ACS grade quality reagent, its chemical specifications are the de facto standards for chemicals used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. Spectrum Chemical manufactured Reagent ACS grade products meet the toughest regulatory standards for quality and purity.