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