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Thermo Scientific Chemicals Thymolphthalein, ACS

Product Code. 11397158
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Product Code. 11397158 Supplier Thermo Scientific Chemicals Supplier No. 016245.14
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Estimated Shipment: 04-09-2026
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Description

pH indicator; colorless below pH 9.3, blue above pH 10.5 | CAS: 125-20-2 | C28H30O4 | 430.544 g/mol

It acts as pH indicator, as reagent for blood after decolorizing the alkaline solution by boiling with zinc dust.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 125-20-2
Molecular Formula C28H30O4
Molecular Weight (g/mol) 430.544
MDL Number MFCD00005909
InChI Key LDKDGDIWEUUXSH-UHFFFAOYSA-N
PubChem CID 31316
IUPAC Name 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one
SMILES CC1=CC(=C(C=C1C2(C3=CC=CC=C3C(=O)O2)C4=CC(=C(C=C4C)O)C(C)C)C(C)C)O

Spezifikation

Melting Point 251°C to 253°C
Beilstein 359413
Merck Index 14,9401
Solubility Information Insoluble in water; Soluble in alcohol,acetone,dilute alkalies (blue color),H2SO4 (red color)
Quantity 25 g
Physical Form Crystalline
Formula Weight 430.55
Grade ACS
Chemical Name or Material Thymolphthalein

RUO – Research Use Only

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