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08714

Millipore

Methyl Red solution

suitable for microbiology

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Synonym(s):
Methyl red indicator solution
Empirical Formula (Hill Notation):
C15H15N3O2
CAS Number:
Molecular Weight:
269.30
Beilstein:
1843037
MDL number:
PubChem Substance ID:
NACRES:
NA.85

Agency

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

Quality Level

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

SMILES string

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

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

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This Item
M8256861235P0290
Methyl Red solution suitable for microbiology

Millipore

08714

Methyl Red solution

Methyl Red sodium salt Crystalline

Sigma-Aldrich

M8256

Methyl Red sodium salt

Phenol red solution 0.5%, liquid, sterile-filtered, BioReagent, suitable for cell culture

Sigma-Aldrich

P0290

Phenol red solution

shelf life

limited shelf life, expiry date on the label

shelf life

-

shelf life

-

shelf life

-

composition

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

composition

-

composition

-

composition

-

technique(s)

microbe id | metabolite detection: suitable

technique(s)

titration: suitable

technique(s)

-

technique(s)

cell culture | mammalian: suitable

application(s)

clinical testing
environmental
food and beverages, microbiology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

-

suitability

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

suitability

-

suitability

-

suitability

-

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

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

69.8 °F

Flash Point(C)

21 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Acta crystallographica. Section F, Structural biology and crystallization communications, 66(Pt 1), 2-7 (2010-01-09)
Azoreductase 1 from Pseudomonas aeruginosa strain PAO1 (paAzoR1) catalyses the activation of the prodrug balsalazide and reduces the azo dye methyl red using reduced nicotinamide adenine dinucleotide cofactor as an electron donor. To investigate the mechanism of the enzyme, a
Oana Alexandru et al.
Journal of neuro-oncology, 102(1), 9-18 (2010-07-17)
A major focus of brain cancer research today is to translate understanding of glioma biology into advances in treatment, by exploring the potential of target therapy. Here we investigated the ability of three compounds belonging to the chemical class of
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
Sofia Babanova et al.
Journal of bioscience and bioengineering, 112(4), 379-387 (2011-07-26)
Soluble artificial mediators are often applied to enhance the electron transfer from living cells to an anode in microbial fuel cells. Recently, we have demonstrated that the Candida melibiosica 2491 yeast strain possesses electrogenic properties and can be used as

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