08714

Methyl Red solution

suitable for microbiology

• Synonym(s): Methyl red indicator solution
• Empirical Formula (Hill Notation): C₁₅H₁₅N₃O₂
• CAS Number: 493-52-7
• Molecular Weight: 269.30
• UNSPSC Code: 41171621
• NACRES: NA.85
• PubChem Substance ID: 329748627
• MDL number: MFCD00002425
• Beilstein/REAXYS Number: 1843037

Properties

• Quality Segment: 200
• agency: according to GB 4789.30-2016, according to ISO 22964:2017
• 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

Description

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.

Safety Information

• pictograms: GHS02,GHS07
• signalword: Danger
• hcodes: H225,H319
• pcodes: P210 - P233 - P240 - P241 - P242 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Flam. Liq. 2
• Storage Class: 3 - Flammable liquids
• wgk: WGK 1
• flash_point_f: 69.8 °F
• flash_point_c: 21 °C
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter