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Methyl Red Sodium Salt

Methyl Red sodium salt is the sodium salt of Methyl Red. Methyl red is an indicator dye that turns red in acidic solutions. It is a pH indicator, turning red under pH 4.4, yellow over pH 6.2, and orange in between those values. It is used in microbiology in the Voges-Proskauer test to identify bacteria that produce stable acids through mixed acid fermentation of glucose. Methyl-red positive bacteria include Proteus vulgaris and Escherichia coli. Methyl-red negative bacteria include Enterobacter aerogenes and Serratia marcescens.

Product Details

Category Dyes, Stains & Indicators
Price POA
CAS Number 845-10-3
Formula (CH3)2NC6H4N=NC6H4CO2Na
Molecular Weight 291.28
Appearance pink to yellow
Availability In Stock
Storage Conditions Room temperature

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