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Solvent Red 23

Catalog No. T5612   CAS 85-86-9
Synonyms: 111440 Red, Tetrazobenzene-β-naphthol, Sudan Red III,

Solvent Red 23 is a solvent dye used to color nonpolar substances.

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Solvent Red 23, CAS 85-86-9
Pack Size Availability Price/USD Quantity
5 mg In stock 50.00
1 mL * 10 mM (in DMSO) In stock 50.00
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Purity 97.38%
Biological Description
Chemical Properties
Storage & Solubility Information
Description Solvent Red 23 is a solvent dye used to color nonpolar substances.
In vitro Sudan III changes its color from orange to blue against a small volume of sulfuric acid, and the acetonitrile solution of Sudan III is the most suitable for observing the color-change phenomenon. (1)H-NMR and UV-Vis spectroscopic studies showed that the color-change mechanism of Sudan III against sulfuric acid is due to the protonation of the dye by sulfuric acid.
Synonyms 111440 Red , Tetrazobenzene-β-naphthol , Sudan Red III ,
Purity 97.38%
Molecular Weight 352.39
Formula C22H16N4O
CAS No. 85-86-9

Storage

Powder: -20°C for 3 years

In solvent: -80°C for 6 months

Solubility Information

DMSO: 5mg/ml(14.18mM), Need ultrasonic

( < 1 mg/ml refers to the product slightly soluble or insoluble )

Citations

References and Literature
1. Sakurai T , Kurata S , Ogino K . Color Change of Sudan III against Concentrated Sulfuric Acid in Acetonitrile and Quantification for a Small Amount of Concentrated Sulfuric Acid[J]. Analytical Sciences, 2016, 32(2):129-133.

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