Thymolphthalein ACS

Supplier: Thermo Scientific Chemicals

Synonyms: 3,3-Bis(4-hydroxy-5-isopropyl-o-tolyl)phthalide, 3,3-Bis(4-hydroxy-5-isopropyl-2-methylphenyl)isobenzofuran-1(3H)-one

16245-06 16245-14
CAAA16245-06EA 60.51 CAD
CAAA16245-06 CAAA16245-14
Thymolphthalein ACS
Thymolphthaleine

pH indicator; colorless below pH 9.3, blue above pH 10.5


CAS No.: 125-20-2 Molecular Formula: C28H30O4 Formula Weight: 430.55 Physical Form: Crystalline Melting Point: 251-253° Solubility: Insoluble in water. Soluble in alcohol, acetone, dilute alkalies (blue color), H2SO4 (red color) Beilstein Reference: 359413 Merck Reference: 14,9401 MDL No.: MFCD00005909


pH indicator; colorless below pH 9.3, blue above pH 10.5

Formula: C₂₈H₃₀O₄
MW: 430.54 g/mol
Melting Pt: 251…253 °C
Storage Temperature: Ambient
MDL Number: MFCD00005909
CAS Number: 125-20-2
EINECS: 204-729-7
Merck Index: 14,9401

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Specification Test Results

Clarity of solution Pass test
Visual transition interval pH 8.8 (colorless) to 10.5 (blue)

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