thymolphthalein

Thymolphthalein is a phthalein dye used as an acid–base (pH) indicator. Its transition range is around pH 9.3–10.5. Below this pH, it is colorless; above, it is blue. The molar extinction coefficient for the blue thymolphthalein dianion is 38,000 M−1 cm−1 at 595 nm.

In the Vinony graph

Vinony's link graph records 13 inbound references to thymolphthalein, and connects out to acid, base and ion.

It sits within the topics Chembox having GHS data, ECHA InfoCard ID from Wikidata and Isopropyl compounds.

Vinony links it to 22 Wikipedia language editions.

Chemical data

Formula: C28H30O4
Molecular weight: 430.5 g/mol
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
InChIKey: LDKDGDIWEUUXSH-UHFFFAOYSA-N
XLogP: 6.8
Polar surface area: 66.8 Å²
H-bond donors: 2
H-bond acceptors: 4
Formal charge: 0

via PubChem

Drug data · ChEMBL

Molecule type: Small molecule

via ChEMBL · EBI

Research

120 papers

Electrode Based on the MWCNTs and Electropolymerized Thymolphthalein for the Voltammetric Determination of Total Isopropylmethylphenols in Spices.Micromachines · 2023
pH-Triggered visual detection of Escherichia coli based on the co-assembly of bacitracin and thymolphthalein.Chemical communications (Cambridge, England) · 2023
Prepared Disappearing Ink and Deciphering of Documents.Journal of forensic sciences · 2019
Preparation of amine salts of thymolphthalein monophosphate and their use for measuring phosphatase activity.Clinical chemistry · 1973
The synthesis of thymolphthalein monophosphate, a new substrate for alkaline phosphatase.Clinica chimica acta; international journal of clinical chemistry · 1966

via PubMed

Wikidata facts

Mass: 430.214
Has use: dye

Show 4 more facts

canonical 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
chemical formula: C₂₈H₃₀O₄
Commons category: Thymolphthalein
melting point: 252

Sources (2)

via Wikidata · CC0

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