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ChemicalBook >> CAS DataBase List >>Methyl Red

Methyl Red suppliers

Methyl Red

CAS:: 493-52-7

MF:: C15H15N3O2

MW:: 269.3

Use：: Methyl red is a commonly used indicator for acid-base titrations. This chemical is usually yellow but turns red below pH 4.0. Bacteria exhibiting mixed acids fermentation will accumulate acids in the medium, resulting in a color change. Approximately five drops of methyl red reagent are added to an overnight culture grown in MRVP broth to determine the test result. Different bacteria convert dextrose and glucose to pyruvate using different metabolic pathways. Some of these pathways produce unstable acidic products which quickly convert to neutral compounds. Some organisms use the butylene glycol pathway, which produces neutral end products, including acetoin and 2,3-butanediol. Other organisms use the mixed acid pathway, which produces acidic end products such as lactic, acetic, and formic acid. These acidic end products are stable and will remain acidic. The Methyl Red test involves adding the pH indicator methyl red to an inoculated tube of MR-VP broth. If the organism uses the mixed acid fermentation pathway and produces stable acidic end-products, the acids will overcome the buffers in the medium and produce an acidic environment in the medium. When methyl red is added, if acidic end products are present, the methyl red will stay red.

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You can find Methyl Red suppliers, manufacturers, and distributors from countries such as CHINA, India and the United States here. Browse to the tetrahydrofuran product information displayed by the supplier, as well as the supplier's contact and capability information.

Hebei Chuanghai Biotechnology Co., Ltd

Methyl Red
Remarks: Purity: 99%min|Package: 25kg;100.00;USD
TEL: 861535057105
CHINA Trader

￥100.00/25kg

Hebei Chuanghai Biotechnology Co,.LTD

Methyl Red
Remarks: Purity: 99%|Package: 1KG;5.00;USD|10KG;3.00;USD|50KG;2.00;USD
TEL: 86-13131129325
CHINA Trader

￥5.00/1KG

￥3.00/10KG

￥2.00/50KG

Henan Tianfu Chemical Co.,Ltd.

TIANFU-CHEM Methyl Red (0.04% in Water) [for pH Determination]
Remarks: Purity: 99% | Package: 25KG;5KG;1KG
TEL: 0371-+86-0371-55170693
CHINA Trader

career henan chemical co

Methyl Red
Remarks: Purity: 99% | Package: 1KG
TEL: 0371-86658258
CHINA Reagent

SHANDONG ZHI SHANG CHEMICAL CO.LTD

Methyl Red
Remarks: Purity: 0.99 | Package: 5KG;1KG
TEL: 0531-68652808
CHINA Trader

Shanghai Longyu Biotechnology Co., Ltd.

493-52-7
Remarks: Purity: 0.99 | Package: 5KG;1KG/aluminum foil package; 25kg/drum | CustNote: Paypal,credit card,western union,bank transfer
CHINA Trader

CONIER CHEM AND PHARMA LIMITED

methyl red
Remarks: Purity: 0.99 | Package: 1kg
CHINA Trader

Tangshan Moneide Trading Co., Ltd.

Methyl red
Remarks: Package: 500g;1kg;25kg
TEL: +86-315-8309571
CHINA Trader

Hefei TNJ Chemical Industry Co.,Ltd.

Methyl red chloride
TEL: 0551-65418671
CHINA Reagent

Shanghai UCHEM Inc.

Methyl red
Remarks: Purity: 0.99 | Package: 25kg;1kg
TEL: +862156762820
CHINA Trader