114502

Methyl Red sodium salt

ACS reagent, Dye content 95 %

• Synonym(s): 4-Dimethylaminoazobenzene-2′-carboxylic acid sodium salt, Acid Red 2
• Empirical Formula (Hill Notation): C₁₅H₁₄N₃NaO₂
• CAS Number: 845-10-3
• Molecular Weight: 291.28
• Colour Index Number: 13020
• Beilstein/REAXYS Number: 4065488
• EC Number: 212-682-9
• MDL number: MFCD00002426
• UNSPSC Code: 12171500
• PubChem Substance ID: 24847176
• NACRES: NA.47

Properties

• grade: ACS reagent
• Quality Level: 200
• agency: suitable for SM 2310; suitable for SM 2320
• form: powder
• composition: Dye content, 95%
• technique(s): titration: suitable
• visual transition interval: 4.2-6.2, pink to yellow
• solubility: water: 0.1%
• λmax: 437 nm
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Na+].CN(C)c1ccc(cc1)\N=N\c2ccccc2C([O-])=O
• InChI: 1S/C15H15N3O2.Na/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);/q;+1/p-1/b17-16+;
• InChI key: GNTPCYMJCJNRQB-CMBBICFISA-M

Description

Biochem/physiol Actions

Methyl Red is a pH indicator and it changes color at a pH of 5.5.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)