CAS No 125-20-2 , 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one Search by region : Germany

Name: 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one
Synonyms: 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one; NSC-2186; 5',5''-Diisopropyl-2',2''-dimethylphenolphthalein; TCMDC-123951; NSC2186;Thymophthalein; MLS000736489; 125-20-2;
CAS Registry Number:125-20-2
Transport: HAZARD
Melting Point: 251-253 ºC
Density: 1.187 g/cm3
Refractive index: 1.612
Safety Statements: R40
Hazard Symbols: Xn: Harmful;
HS Code: 29322980
EINECS: 204-729-7
Molecular Weight: 430.5354
InchiKey: LDKDGDIWEUUXSH-UHFFFAOYSA-N
InChI: InChI=1S/C28H30O4/c1-15(2)20-13-23(17(5)11-25(20)29)28(22-10-8-7-9-19
(22)27(31)32-28)24-14-21(16(3)4)26(30)12-18(24)6/h7-16,29-30H,1-6H3
Risk Statements: S36/37
Molecular Formula: C₂₈H₃₀O₄
Molecular Structure:

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           125-20-2 THYMOLPHTHALEIN
           
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References of 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one

Title: Thymolphthalein
CAS Registry Number: 125-20-2
CAS Name: 3,3-Bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-1(3H)-isobenzofuranone
Synonyms: 5￠,5￠￠-diisopropyl-2￠,2￠￠-dimethylphenolphthalein
Molecular Formula: C28H30O4
Molecular Weight: 430.54
Percent Composition: C 78.11%, H 7.02%, O 14.86%
Literature References: Obtained by heating phthalic anhydride with thymol at 110° in the presence of stannic chloride.
Properties: Needles, mp ~253°. Insol in water; sol in alcohol, acetone; also sol in dil alkalies with a blue color, in H2SO4 with a carmine-red color.
Melting point: mp ~253°
Use: As pH indicator: colorless 9.3 to blue 10.5. Also as reagent for blood after decolorizing the alkaline soln by boiling with zinc dust.