Indigo carmine, high purity biological stain, for analysis

Supplier: Thermo Scientific Chemicals

ThermoScintific Chemicals

ThermoScintific Chemicals

Irritant Warning

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

15744-0250 15744-1000 15744-5000

TS15744-0250EA 59 USD

TS15744-0250 TS15744-1000 TS15744-5000

Indigo carmine, high purity biological stain, for analysis

Indigo carmine

Formula: C₁₆H₈N₂Na₂O₈S₂
MW: 466.36 g/mol
Storage Temperature: Ambient

MDL Number: MFCD00005723
CAS Number: 860-22-0
EINECS: 212-728-8
Merck Index: 1304969

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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