Indigo carmine (C.I. 73015) IND USP, NF

C₁₆H₈N₂Na₂O₈S₂
Acid Blue 74 , Indigotine
M.W: 466,36   CAS: 860-22-0  EC: 212-728-8  TARIC: 32041200

H: H317  P: P261;P272;P280;P302+P352;P333+P313;P501  

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• Appearance ? Dark blue-violet powder having a metallic luster of copper
• 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

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