M-CRESOL PURPLE, SODIUM SALT CAS 62625-31-4

Introduction：Basic information about M-CRESOL PURPLE, SODIUM SALT CAS 62625-31-4, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

M-CRESOL PURPLE, SODIUM SALT Basic information

• Product Name: M-CRESOL PURPLE, SODIUM SALT
• Synonyms: M-CRESOLSULFONEPHTHALEIN SODIUM SALT;M-CRESOLSULFONPHTHALEIN SODIUM SALT;M-CRESOL PURPLE, SODIUM SALT;M-CRESOL PURPLE, WATER SOLUBLE;METACRESOL PURPLE SODIUM SALT;SODIUM METACRESOL PURPLE;SODIUM M-CRESOL PURPLE;SODIUM M-CRESOLSULFONEPHTHALATE
• CAS: 62625-31-4
• MF: C21H17NaO5S
• MW: 404.41
• EINECS: 263-656-9
• Product Categories: Sulfonephthalein;Analytical Chemistry;Indicator (pH);pH Indicators
• Mol File: 62625-31-4.mol

M-CRESOL PURPLE, SODIUM SALT Chemical Properties

• Melting point: >250°C
• storage temp.: room temp
• solubility: Solubility Soluble in water, ethanol
• pka: 1.51, 8.32(at 25℃)
• form: Powder
• color: Orange-brown to black
• PH Range: 1.2(red)-2.8(yellow) 7.4(yellow)-9(purple)
• Water Solubility: Soluble in water.
• ε(extinction coefficient): ≥15000 at 433-439nm in H2O at 0.008g/L
• λmax: 436nm
• Major Application: Screening method of endocrine disrupting chemicals
• InChI: 1S/C21H18O5S.Na/c1-13-11-15(22)7-9-17(13)21(18-10-8-16(23)12-14(18)2)19-5-3-4-6-20(19)27(24,25)26;/h3-12,22H,1-2H3,(H,24,25,26);/q;+1/p-1/b21-18+;
• InChIKey: BYQJYOOKENJSNK-GOSREXKOSA-M
• SMILES: [Na+].Cc1cc(O)ccc1\C(=C2\C=CC(=O)C=C2C)c3ccccc3S([O-])(=O)=O
• CAS DataBase Reference: 62625-31-4
• EPA Substance Registry System: Phenol, 4,4'-(2,2-dioxido-3H-1,2-benzoxathiol-3-ylidene)bis[3-methyl-, monosodium salt (62625-31-4)

Safety Information

• Safety Statements: 22-24/25
• WGK Germany: 3
• TSCA: TSCA listed
• HS Code: 29147000
• Storage Class: 11 - Combustible Solids

M-CRESOL PURPLE, SODIUM SALT Usage And Synthesis

Chemical Properties

orange-brown to black powder

Uses

m-Cresol purple sodium salt is used to detect changes in pH during titrations at which color changes occur at pH 7.6-9.2. Upon bromination, m-cresol purple sodium salt creates the dye bromocresol green (sc-206036) which is used as a tracking dye in DNA agarose gel electrophoresis. In addition, m-cresol purple sodium salt can be used to stain epithelial cells and proteins.