

Methyl Red (Highly Pure) by Molecular Depot is a methyl red, an azo dye used as a pH indicator. It is red below about pH 4.4 and yellow above pH 6.2, which places its transition in the acidic range. It is used as an indicator in acid-base titration and in the methyl red test for mixed acid fermentation, and as a pH-sensitive dye in sensor research. Each unit contains 5 g. MBP supplies Molecular Depot research reagents to research labs in the United States, Canada and worldwide.