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Cresol Purple

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Cresol Purple Basic information

Product Name:
Cresol Purple
Synonyms:
  • M-CRESOL PURPLE, INDICATOR GRADE
  • M-CRESOL PURPLE FREE ACID
  • M-CRESOL PURPLE INDICATOR
  • Phenol, 4,4-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis3-methyl-
  • m-Cresolpurpl
  • M-CRESOLSULFONPHTHALEIN
  • M-CRESOLSULFONEPHTHALEIN
  • M-CRESOL PURPLE
CAS:
2303-01-7
MF:
C21H18O5S
MW:
382.43
EINECS:
218-960-6
Product Categories:
  • Sulfonephthalein
  • Analytical Chemistry
  • Organics
  • Indicator (pH)
  • pH Indicators
Mol File:
2303-01-7.mol
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Cresol Purple Chemical Properties

Melting point:
>250°C
Boiling point:
577.5±50.0 °C(Predicted)
Density 
1.404±0.06 g/cm3(Predicted)
storage temp. 
Store at +5°C to +30°C.
solubility 
Solubility Very slightly soluble in water, ethanol; soluble in methanol
pka
1.51, 8.32(at 25℃)
form 
Liquid
color 
Dark green
PH Range
1.2 (red) - 2.8 (yellow) and 7.4 (yellow) - 9.0 (purple)
Water Solubility 
Soluble in water and sodium hydroxide solution. Slightly soluble in alcohol.
λmax
579nm, 371nm
Merck 
14,2577
BRN 
350314
Stability:
Stable. Incompatible with strong oxidizing agents.
Major Application
Fuel cells, sensors, display device, falsification-proof security paper, inks, correction fluid, paints, detection of electrophilic gases, lubricants, cement products, packaging system, adhesive, cosmetics, food storage, determining glucose in dialysis solution, screening of cat diseases, detecting carbohydrates, oral hygiene products
EPA Substance Registry System
Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[3-methyl- (2303-01-7)
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Safety Information

Safety Statements 
24/25
WGK Germany 
WGK 2 water endangering
TSCA 
Yes
HS Code 
2934 99 90

MSDS

  • Language:English Provider:ACROS
  • Language:English Provider:ALFA
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Cresol Purple Usage And Synthesis

Chemical Properties

green crystalline powder

Uses

Acid-base indicator.

Cresol PurpleSupplier

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