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Thymolphthalein

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Thymolphthalein Basic information

Product Name:
Thymolphthalein
Synonyms:
  • 3,3-bis(4-hydroxy-2-methyl-5-(1-methylethyl)phenyl)-1(3H)-Isobenzofuranone
  • 3,3-bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-1(3h)-isobenzofuranon
  • Thymolphthalein, for analysis ACS
  • Thymolphthalein, indicator, pure
  • THYMOLPHTHALEIN REAGENT (ACS)
  • THYMOLPHTHALEIN SOLUTION, 0.05%
  • 1(3H)-Isobenzofuranone, 3,3-bis4-hydroxy-2-methyl-5-(1-methylethyl)phenyl-
  • thymolphthalein solution
CAS:
125-20-2
MF:
C28H30O4
MW:
430.54
EINECS:
204-729-7
Product Categories:
  • Miscellaneous Biochemicals
  • Analytical Chemistry
  • Indicator (pH)
  • pH Indicators
  • Phthalein
Mol File:
125-20-2.mol
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Thymolphthalein Chemical Properties

Melting point:
251-253 °C(lit.)
Boiling point:
504.79°C (rough estimate)
Density 
0.92 g/mL at 25 °C
refractive index 
1.6400 (estimate)
Flash point:
74 °F
storage temp. 
Store at RT.
solubility 
ethanol: clarity passes test
form 
Low Melting Mass
pka
9.70, 10.0(at 25℃)
Specific Gravity
0.92
color 
White to slightly yellow
Odor
Mild characteristic odor
PH
8.6~10.5
PH Range
9.3(colourless)-10.5(blue)
explosive limit
3.30-19%
Water Solubility 
insoluble
λmax
592nm, 396nm, 598nm
Merck 
14,9401
BRN 
359413
Major Application
Display device, semiconductors, recording materials, photoconductors, sol-gel matrix, tin electroplating process, counterfeit-proof paper, authentication system forsecure documents, inks, pencil leads, correction fluid, paints, petroleum marker, tennis ball, adhesives, floor coatings, textiles, detergents, insecticide, lotion, cleaning pads, food storage, determine bacterial growth, Streptococci in saliva, dental impressionmaterials
InChIKey
GRBHJPCWQRVGND-UHFFFAOYSA-N
CAS DataBase Reference
125-20-2(CAS DataBase Reference)
EPA Substance Registry System
Thymolphthalein (125-20-2)
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Safety Information

Hazard Codes 
F,Xn
Risk Statements 
11-40-10
Safety Statements 
7-16-36/37-24/25-22
RIDADR 
UN 1170 3/PG 3
WGK Germany 
3
TSCA 
Yes
HazardClass 
3
PackingGroup 
II
HS Code 
29322980

MSDS

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Thymolphthalein Usage And Synthesis

Chemical Properties

white fine crystalline powder

Uses

As pH indicator: colorless 9.3 to blue 10.5. Also as reagent for blood after decolorizing the alkaline solution by boiling with zinc dust.

ThymolphthaleinSupplier

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010-82848833- ;010-82848833-
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