Methyl Red
Thermo Scientific Chemicals

Methyl Red

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Quantity:
500 g
100 g
Catalog number A16690.36
also known as A16690-36
Price (USD)/ Each
242.65
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269.00 
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Quantity:
500 g
Request bulk or custom format
Price (USD)/ Each
242.65
Online exclusive
269.00 
Save 26.35 (10%)
Add to cart
Methyl Red
Catalog numberA16690.36
Price (USD)/ Each
242.65
Online exclusive
269.00 
Save 26.35 (10%)
-
Add to cart
Chemical Identifiers
CAS493-52-7
IUPAC Name2-{2-[4-(dimethylamino)phenyl]diazen-1-yl}benzoic acid
Molecular FormulaC15H15N3O2
InChI KeyCEQFOVLGLXCDCX-UHFFFAOYSA-N
SMILESCN(C)C1=CC=C(C=C1)N=NC1=CC=CC=C1C(O)=O
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SpecificationsSpecification SheetSpecification Sheet
Specific Absorbance (E 1%/1cm)700-800 (lambda-max @ pH6.2)
FormPowder or crystals
Melting Point (clear melt)172-182?C
Specific Absorbance (E 1%/1cm)≥1300 (lambda-max @ pH4.2)
Appearance (Color)Dark red to brown to purple to violet
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Bacterial strains isolated from dye-contaminated sludge decolorized a toxic azo dye, namely, methyl red (MR). Methyl red is used in the methyl red test (MR test), used to identify bacteria producing stable acids by mechanisms of mixed acid fermentation of glucose

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Bacterial strains isolated from dye-contaminated sludge decolorized a toxic azo dye, namely, methyl red (MR). Methyl red is used in the methyl red test (MR test), used to identify bacteria producing stable acids by mechanisms of mixed acid fermentation of glucose

Solubility
Insoluble in water. Soluble in ethanol.

Notes
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store away from strong oxidizing agents.
RUO – Research Use Only

General References:

  1. P.K. Wong,; P.Y. Yuen. Decolorization and biodegradation of methyl red by Klebsiella pneumoniae RS-13. Water Research. 1996, 30 (7) ,1736-1744.
  2. J.P. Jadhav,; G.K. Parshetti,; S.D. Kalme, S.P. Govindwar. Decolourization of azo dye methyl red by Saccharomyces cerevisiae MTCC 463. Chemosphere. 2007, 68 (2),394-400.
  3. Acid-base indicator: pH 4.2 - 6.2.