M-CRESOL PURPLE, SODIUM SALT Chemical Properties

Melting point:

>250°C

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.

λmax

436nm

Major Application

Screening method of endocrine disrupting chemicals

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 

Yes

HS Code 

29147000

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

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.

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