Chemicals and Drugs

Thymolphthalein

Used as a pH indicator and as a reagent for blood after decolorizing the alkaline solution by boiling with zinc dust.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Used as a pH indicator and as a reagent for blood after decolorizing the alkaline solution by boiling with zinc dust.

Chemical Identity

Chemical Information

Molecular Formula
C28H30O4
Molecular Weight
430.5 g/mol
CAS Registry No.
125-20-2
IUPAC Name
3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one
InChIKey
LDKDGDIWEUUXSH-UHFFFAOYSA-N
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
MeSH Unique ID
D013944
Source
PubChem CID 31316

MeSH Record

Classification

Broader headings

Related Concepts

Knowledge Graph

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Drug Class

Pharmacological Action

MeSH Record

Aspects Covered

19 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, analogs & derivatives, analysis, chemical synthesis, chemistry, classification, economics, history, isolation & purification, metabolism, pharmacokinetics, pharmacology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity.

MeSH Record

History Note

91(75); was see under PHENOLPHTHALEINS 1975-90

MeSH Record

Previous Indexing

  • Phenolphthaleins (1969-1974)

MeSH Hierarchy

Tree Number

  1. D02w.455w.426w.559w.389.657w.625.808w

AMA Style

References

  1. National Library of Medicine. Thymolphthalein. Medical Subject Headings (MeSH). 2026. Unique ID D013944. http://id.nlm.nih.gov/mesh/2026/D013944
  2. Thymolphthalein. In: Wikipedia. https://en.wikipedia.org/wiki/Thymolphthalein
  3. Thymolphthalein. In: Wikidata. https://www.wikidata.org/wiki/Q421048
  4. Thymolphthalein. In: PubChem Compound. CID 31316. https://pubchem.ncbi.nlm.nih.gov/compound/31316