Indigo Carmin
Availability: In-Stock
Dispatch by: 7-Dec-2019 5:00 PM
CAT No. CS-T-29273
Category Dyes
CAS 860-22-0
Mol. Weight 466.35 g/mol
Mol. Formula C16H8N2Na2O8S2
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Dispatch by: 7-Dec-2019 5:00 PM

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Product Description
Stock Status In-Stock
Dispatch by: 7-Dec-2019 5:00 PM
Synonyms 2-(1,3-Dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-1H-Indole-5-sulfonic Acid;5,5-Indigodisulfonic Acid Disodium Salt.
Storage Conditions Keep in a tightly closed vial, store in refrigerator
Purity (%) >98%
Application Notes 5,5'-Indigodisulfonic Acid Disodium Salt is a food additive that is widely used in the market. 5,5'-Indigodisulfonic Acid Disodium Salt was also used as a dye for cationic cotton fabrics.
References Ma, Y.D., et al.: J. Agric. Chem., 60, 10867 (2012); Sarikaya, R., et al.: Chemosphere, 8, 974 (2012); Zhang, W., et al.: Yinran., 37, 25 (2011);
Pubchem Id 2723854
Smiles C1=CC2=C(C=C1S(=O)(=O)[O-])C(=C(N2)C3=NC4=C(C3=O)C=C(C=C4)S(=O)(=O)[O-])O.[Na+].[Na+]
The balance used are calibrated with weights Traceable to National Standards NIST for accuracy

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