Indigo carmine, high purity biological stain, for analysis
Supplier: Thermo Scientific
ACRO157445000EA
381
EUR
ACRO157445000
ACRO157440250
ACRO157441000
Indigo carmine, high purity biological stain, for analysis
Indigo carmine
Formula:
C₁₆H₈N₂Na₂O₈S₂ MW: 466,36 g/mol Melting Pt: ? 300 °C Storage Temperature: Ambient |
MDL Number:
MFCD00005723 CAS Number: 860-22-0 Merck Index: 13,04969 |
Specification Test Results
Appearance | Dark blue Crystalline powder |
Infrared spectrum | Conforms |
Heavy metals | ≤40 ppm |
Additional info | NaCl, Na2SO4 and volatile matter: < 15% |
Additional info | ether extractable matter: < 0.2% |
Additional info | synthetic intermediates other than free aromatic amines (total): < 0.5% |
Additional info | subsidiary colours: < 1.0% |
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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