M-CRESOL PURPLE, SODIUM SALT Property

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

Safety Statements 

22-24/25

WGK Germany 

3

TSCA 

Yes

HS Code 

29147000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

M-CRESOL PURPLE, SODIUM SALT Chemical Properties,Usage,Production

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.