Skip to Content
Merck

08714

Methyl Red solution

suitable for microbiology

Synonym(s):

Methyl red indicator solution

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Empirical Formula (Hill Notation):
C15H15N3O2
CAS Number:
493-52-7
Molecular Weight:
269.30
UNSPSC Code:
41171621
NACRES:
NA.85
PubChem Substance ID:
329748627
MDL number:
MFCD00002425
Beilstein/REAXYS Number:
1843037

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

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/h3-10H,1-2H3,(H,19,20)/b17-16+

InChI key

CEQFOVLGLXCDCX-WUKNDPDISA-N

SMILES string

CN(C)c1ccc(cc1)\N=N\c2ccccc2C(O)=O

agency

according to GB 4789.30-2016, according to ISO 22964:2017

product line

BioChemika

shelf life

limited shelf life, expiry date on the label

composition

dist. water, 200 mL , ethanol 95%, 300 mL , methyl red, 0.1 g

technique(s)

microbe id | metabolite detection: suitable

application(s)

clinical testing
environmental
food and beverages, microbiology

suitability

Enterococcus spp., Escherichia coli, Klebsiella spp., Proteus spp., Pseudomonas spp., Staphylococcus spp., bacteria

Quality Level

200

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Methyl red solution is an azo dye which turns to red when pH is below 4.4 (yellow pH < 6.2, orange pH 4.4-6.2). Some bacteria utilize glucose to form large amounts of acid with the result that the pH value of the medium falls distinct. Other species produce no or less free acid. This difference can be visualized by using methyl red. This test is used to differentiate enteric bacteria.

Application

Methyl red solution is a pH indicator dye recommended for detection of bacteria producing acid from glucose fermentation such as Enterobacteriaceae in various samples.

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

hcodes

H225,H319

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

69.8 °F

flash_point_c

21 °C

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCP3027
BCCM8672
BCCL8848
BCCL0746
BCCK1481

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Robin L Stingley et al.
Journal of medical microbiology, 59(Pt 1), 108-114 (2009-09-05)
Reduction of Methyl Red (MR) and Orange II (Or II) by 26 human skin bacterial species was monitored by a rapid spectrophotometric assay. The analysis indicated that skin bacteria, representing the genera Staphylococcus, Corynebacterium, Micrococcus, Dermacoccus and Kocuria, were able
X D Zhang et al.
Journal of hazardous materials, 170(2-3), 883-887 (2009-06-09)
An aqueous C.I. Acid Red 2 solution was decolorized by electrolysis using iron as anode. The decolorization mechanism was investigated through experimental observations on the electrochemical behavior of C.I. Acid Red 2 on Pt rotating disk electrode, UV-visible spectra of
Taiga Fujii et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 18(35), 10865-10872 (2012-07-26)
Asymmetric dye clusters with a single fluorophore (Cy3) and multiple quenchers (4'-methylthioazobenzene-4-carboxylate, methyl red, and 4'-dimethylamino-2-nitroazobenzene-4-carboxylate) were prepared. The dye and one-to-five quenchers were tethered through D-threoninol to opposite strands of a DNA duplex. NMR analysis revealed that the clusters
S S Gomare et al.
Journal of applied microbiology, 106(3), 993-1004 (2009-02-04)
To evaluate the potential of Brevibacillus laterosporus MTCC 2298 for the decolourization of different textile azo dyes including methyl red, mechanism of biotransformation and the toxicity of products. Brevibacillus laterosporus showed decolourization of thirteen different azo dyes including methyl red.
Angel Martinez et al.
Proceedings of the National Academy of Sciences of the United States of America, 108(52), 20891-20896 (2011-12-14)
Noncontact optical trapping and manipulation of micrometer- and nanometer-sized particles are typically achieved by use of forces and torques exerted by tightly focused high-intensity laser beams. Although they were instrumental for many scientific breakthroughs, these approaches find few technological applications
View All Related Papers

Related Content

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

Contact Technical Service