Indigo carmine, pure, certified

Supplier: Thermo Scientific
Warning

Synonyms: CI 73015, FD&C Blue #2, 5,5'-Indigodisulphonic acid, Disodium salt, Food blue No. 2, acid Blue 74, Sodium 3,3'-dioxo-[2,2'-biindolinylidene]-5,5'-disulphonate, FD and C Blue No. 2, Carmine Blue

412300250 412301000
ACRO412300250EA 59 EUR
ACRO412300250 ACRO412301000
Indigo carmine, pure, certified
Indigo carmine
Formula: C₁₆H₈N₂Na₂O₈S₂
MW: 466,36 g/mol
Melting Pt: ? 300 °C
Storage Temperature: Ambient
MDL Number: MFCD00005723
CAS Number: 860-22-0
EINECS: 212-728-8
Merck Index: 13,04969

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Specification Test Results

Appearance Dark blue to purple Crystalline powder
Infrared spectrum Conforms
Dye content ≥80 %
UV Lambda max 608 to 612 nm
Absorption Ratio P-15/P+15 0.98 to 1.07
BSC Certification Passes

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