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P-XYLENOL BLUE

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P-XYLENOL BLUE Basic information

Product Name:
P-XYLENOL BLUE
Synonyms:
  • phenol,4,4’-(3h-2,1-benzoxathiol-3-ylidene)bis[2,5-dimethyl-,s,s-dioxide
  • 1,4-DIMETHYL-5-HYDROXYBENZENESULFONPHTHALEIN
  • 4,4-(3H-2,1-benzoxathiol-3-ylidene)bis(2,5-dimethylphenol) S,S-dioxide
  • p-Xylenolsulphonephthalein
  • XYLENOL BLUE, INDICATOR GRADE
  • XYLENOL BLUE FREE ACID
  • P-XYLENOL BLUE INDICATOR
  • P-XYLENOL BLUE (0.04% IN CA. 95% ETHANOL) [FOR PH DETERMINATION]
CAS:
125-31-5
MF:
C23H22O5S
MW:
410.48
EINECS:
204-736-5
Product Categories:
  • Sulfonephthalein
  • Organics
  • Analytical Chemistry
  • Indicator (pH)
  • pH Indicators
Mol File:
125-31-5.mol
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P-XYLENOL BLUE Chemical Properties

Melting point:
212°C (dec.)
Boiling point:
577.2±50.0 °C(Predicted)
Density 
1.346±0.06 g/cm3(Predicted)
solubility 
Solubility Slightly soluble in water, soluble in ethanol
pka
9.52(at 25℃)
form 
Powder
color 
Dark brown
Odor
Odorless
PH Range
1.2(red)-2.8(yellow) 8(yellow)-9.6(blue)
λmax
424nm
Merck 
14,10083
BRN 
363132
Major Application
Electrochromic displays, chemical sensors, fiber-optic pH sensors, optical quality films, ink, corrosion testing, lubricants, TTI indicators, food storage, cosmetics, bacterial growth, microbiological assays, determining lipase, drugs
InChIKey
MGUKYHHAGPFJMC-UHFFFAOYSA-N
CAS DataBase Reference
125-31-5(CAS DataBase Reference)
EPA Substance Registry System
Xylenol Blue (125-31-5)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36/37/39-36
WGK Germany 
3
TSCA 
Yes
HS Code 
29147000

MSDS

  • Language:English Provider:ALFA
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P-XYLENOL BLUE Usage And Synthesis

Chemical Properties

P-XYLENOL BLUE is Brown powder

Uses

Indicator, used in 0.02% solution: pH 1.2 red, 2.8 yellow, 9.6 blue.

P-XYLENOL BLUESupplier

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