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Alizarin Yellow R Free Acid

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Alizarin Yellow R Free Acid

is a yellow coloured azo dye made by the diazo coupling reaction. It usually comes as a sodium salt. In its pure form it is a rust-colored solid. Its main use is as a pH indicator.
Alizarin Yellow R is used for coloring many different materials such as textile, leather, plastics, food, and pharmaceuticals and for manufacturing paints and lacquers and for printings purposes.
In microbiology it is a useful acid-base indicator for nutrient media.

Product Details

Category Dyes, Stains & Indicators
Microbiology Products
Price Custom packed. Request price on line.
CAS Number 2243-76-7
Formula O2NC6H4N=NC6H3-2-(OH)CO2H
Molecular Weight 287.23
Purity 80.0%
Appearance reddish orange powder
Availability In Stock
Storage Conditions Room temperature
MDL Number Request if not shown

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