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Methyl Red solution

SIAL/08714 - suitable for microbiology

Synonym: Methyl red indicator solution

CAS Number: 493-52-7
Empirical Formula (Hill Notation): C15H15N3O2
Molecular Weight: 269.30
MDL Number: MFCD00002425
Linear Formula: C15H15N3O2
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-08714-100ML-F 100 mL
 $41.00
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agency according to GB 4789.30-2016
  according to ISO 22964:2017
application(s) clinical testing
environmental
food and beverages
  microbiology
composition dist. water, 200 mL
  ethanol 95%, 300 mL
  methyl red, 0.1 g
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
product line BioChemika
Quality Level 200 
shelf life limited shelf life, expiry date on the label
SMILES string CN(C)c1ccc(cc1)N=Nc2ccccc2C(O)=O
suitability Enterococcus spp.
  Escherichia coli
  Klebsiella spp.
  Proteus spp.
  Pseudomonas spp.
  Staphylococcus spp.
  bacteria
technique(s) microbe id | metabolite detection: suitable
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.
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.
UNSPSC 41171621

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