应用
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.

备注
Store at room temperature. Reactive with oxidizing agents.

基本信息

MDL
MFCD00002426

EINECS
212-682-9

分子式
C₁₅H₁₄N₃NaO₂

分子量
291.29

灵敏度
Ambient temperatures.

形态
Powder

溶解性
Soluble in water (800 mg/ml at 25°C), and slightly soluble in ethanol at (25°C).

Beilstein
4065488

安全信息

TSCA
是