Methyl Red
甲基红
CAS 493-52-7 CTH10157
Methyl Red is an azo pH indicator that changes from red to yellow between pH 4.4 and 6.2. It is used as an endpoint indicator in acid-base titrations and in the methyl red (MR) test for biochemical identification of bacteria, distinguishing mixed-acid fermenters.
Product information
- Chinese name
- 甲基红
- English name
- Methyl Red
- CAS
- 493-52-7
- Cat. No.
- CTH10157
- Category
- Viability Assay & Staining
- Formula
- C15H15N3O2
- Molecular weight
- 269.30
- Appearance
- Dark red crystalline powder
- Solubility
- Practically insoluble in water; soluble in ethanol and glacial acetic acid
- Storage
- Room temperature, sealed and dry
Typical reference values; the batch COA / SDS governs.
Pack sizes and catalogue numbers
CTH10157-100G
Prices on request; lead time confirmed on the quotation.
FAQ
What is the CAS number of Methyl Red?
The CAS number of Methyl Red (甲基红) is 493-52-7; Catch-Chem catalogue number CTH10157.
What pack sizes and lead times are available for Methyl Red?
Methyl Red (Cat. No. CTH10157) comes in 100 g; lead time: On request, confirmed on the quotation.
How should Methyl Red be stored?
Recommended storage for Methyl Red (CTH10157): Room temperature, sealed and dry. The batch COA / SDS governs.
What is Methyl Red used for?
Methyl Red (CTH10157) is listed under Viability Assay & Staining. Typical uses: pH indicator, MR test, Titration. For research or industrial non-medical use only.
Where can I buy Methyl Red?
Request a quote for Methyl Red from Catch-Chem (Yantai, China): tel +86-192-9602-6528, email Ethan.sheng@catchchem.com, quoting catalogue number CTH10157.
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For research or industrial use only. Not for human or animal diagnosis or treatment, and not for drug or food use. Grade, pack size and lead time follow the supplier batch COA / SDS. Figures on this site are general industry references, not a factory specification.