Chemicals and Drugs

o-Phthalaldehyde

A reagent that forms fluorescent conjugation products with primary amines. It is used for the detection of many biogenic amines, peptides, and proteins in nanogram quantities in body fluids.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A reagent that forms fluorescent conjugation products with primary amines. It is used for the detection of many biogenic amines, peptides, and proteins in nanogram quantities in body fluids.

Chemical Identity

Chemical Information

Molecular Formula
C8H6O2
Molecular Weight
134.13 g/mol
CAS Registry No.
643-79-8
IUPAC Name
phthalaldehyde
InChIKey
ZWLUXSQADUDCSB-UHFFFAOYSA-N
SMILES
C1=CC=C(C(=C1)C=O)C=O
MeSH Unique ID
D009764
Source
PubChem CID 4807

MeSH Record

Classification

Broader headings

Related Concepts

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Drug Class

Pharmacological Action

MeSH Record

Synonyms

9 entry terms
  • Orthophthaldialdehyde
  • o-Phthaldialdehyde
  • ortho-Phthalaldehyde
  • ortho-Phthalic Aldehyde
  • Aldehyde, ortho-Phthalic
  • o Phthalaldehyde
  • o Phthaldialdehyde
  • ortho Phthalaldehyde
  • ortho Phthalic Aldehyde

MeSH Record

Aspects Covered

25 allowable subheadings

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

MeSH Record

History Note

91(77); was see under ALDEHYDES 1977-90

MeSH Record

Previous Indexing

  • Aldehydes (1966-1976)
  • Phthalic Acids (1966-1976)

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. o-Phthalaldehyde. Medical Subject Headings (MeSH). 2026. Unique ID D009764. http://id.nlm.nih.gov/mesh/2026/D009764
  2. o-Phthalaldehyde. In: Wikipedia. https://en.wikipedia.org/wiki/Phthalaldehyde
  3. o-Phthalaldehyde. In: Wikidata. https://www.wikidata.org/wiki/Q5933776
  4. o-Phthalaldehyde. In: PubChem Compound. CID 4807. https://pubchem.ncbi.nlm.nih.gov/compound/4807