Indigo carmine, high purity biological stain, for analysis

Supplier: Thermo Scientific
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157440250 157441000 157445000
ACRO157440250EA 38.1 EUR
ACRO157440250 ACRO157441000 ACRO157445000
Indigo carmine, high purity biological stain, for analysis
Indigo carmine
Formula: C₁₆H₈N₂Na₂O₈S₂
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 Crystalline powder
Infrared spectrum Conforms
Heavy metals ≤40 ppm
Additional info dinatrium-3,3'-dioxo-2,2'-bisindolylidene-5,7'-disulphonate: 18.0%
Dye content ≥85 %
Arsenic (As) ≤3 ppm
Cadmium (Cd) ≤1 ppm
Lead (Pb) ≤10 ppm
Mercury (Hg) ≤1 ppm
Free amine ≤0.01 % (aromatic)
Insoluble matter ≤0.2 % (in water)

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