Indigo carmine, C.I. 73015 USP, NF 25 g

C₁₆H₈N₂Na₂O₈S₂ M.W : 466,36  CAS : 860-22-0 EC : 212-728-8 P : P102-P202 Specifications :

• Assay ? 80%
• Transition range pH 11.4-13
• blue to yellow
• Absorption maximum in water (H₂O) 608-612nm
• Absorptivity (A₁%: 1cm: ?_max: 0.001% H₂O) 380-475nm
• Loss on drying (110 °C) ? 10%
• Suitability for microbiology Passes test

packaging: glass bottle, volume: 25 g, pcs per sales unit: INCA-00D-025