250198
Sigma-Aldrich

Methyl Red

Linear Formula:

(CH3)2NC6H4N=NC6H4CO2H

Empform:

C15H15N3O2

Synonyms English:

2-(4-Dimethylaminophenylazo)benzoic acid

Nacres: NA.47
Mdl No: MFCD00002425
Fw: 269.3
Pubchem Substance Id: 24855040
CAS Number: 493-52-7
Grouped product items
SKU Pack Size Availability Price Quantity
Request a Bulk Order Check Availability

Properties

Properties
Lambda max 410 nm
applications diagnostic assay manufacturing
hematology
histology
Description Methyl Red ACS reagent, crystalline
form crystalline
grade ACS reagent
inchi 1S/C15H15N3O2/c1-18(2)12-9-7-11(8-10-12)16-17-14-6-4-3-5-13(14)15(19)20/h3-10H1-2H3(H1920)/b17-16+
inchi key CEQFOVLGLXCDCX-WUKNDPDISA-N
MDM Code 250198-25G
Material Number 250198
Business Unit 790
Shipping Mode AP
CAS Number 493-52-7

Description

Application

Methyl Red has been used as pH indicator in a glucose biosensor, which is used for salivary analysis.

Biochem/physiol Actions

Methyl Red is a maroon red crystal azo dye. Methyl Red is a pH indicator and changes color at a pH of 5.5. Methyl Red is widely used in saliva sampling method. In addition, it is also employed in carbohydrate and lactic acid detection. Methyl Red has been effectively used for intrageneric differentiation of Enterobacteriaceae.

SAFETY INFORMATION

Signal Word

RIDADRRIDADR

WGK Germany

WGK 2

Flash Point (F)

Not applicable

Flash Point (C)

Not applicable

Target Organs

Risk Statement

Supplemental Hazard Statements

DOCUMENTATION

Certificate of Analysis View Sample COA
Certificate of Origin

TECHNICAL SERVICE

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Welcome to Merck Ecommerce (Beta). During this Beta phase, you may encounter occasional broken function, layout and issues. ×