3,4-Dihydroxyphenylacetaldehyde is an organic chemical compound from the phenylacetaldehyde group, also known by the abbreviation DOPAL. It is a metabolite of the monoamine neurotransmitter dopamine, produced by monoamine oxidase (MAO).
Systematic name
2-(3,4-Dihydroxyphenyl)acetaldehyde
Other names, synonyms
Protocatechuatealdehyde; (3,4-Dihydroxyphenyl)acetaldehyde; 3,4-Dihydroxy-benzeneacetaldehyde; DHPAA aldehyde; Dopamine aldehyde; DOPAL; Dopaldehyde; 3,4-Dihydroxy-α-tolualdehyde
Molecular formula and structural formula of 3,4-Dihydroxyphenylacetaldehyde:
C8H8O3
Mr = 152.149 g/mol
2-(3,4-Dihydroxyphenyl)acetaldehyde
SMILES: C1=CC(=C(C=C1CC=O)O)O
Calculated NMR spectrum (Predict Spectra via NMRDB)
1H NMR Spektrum, 13C NMR Spektrum.
Mass-related elemental composition and isotope proportions of the compound 3,4-Dihydroxyphenylacetaldehyde - C8H8O3 - calculated based on molecular mass.
*) The third column lists the atomic masses or isotope masses of the elements involved and - in square brackets - the natural isotope composition.
The molar mass is M = 152.149 grams per mole.
The amount of substance in one kilogram of the substance is n = 6.573 mol.
The amount of substance in one gram of the substance is n = 0.007 mol.
Monoisotopic mass: 152.0473441146 Da - related to 12C81H816O3.
(General information without guarantee of accuracy and completeness! The information does not replace the chemical safety data sheet or a risk assessment, but rather provides a general overview of the risk posed by the hazardous substance.
Signal word: Warning
GHS hazard statements (H phrases):
The table below lists producers and suppliers of 3,4-Dihydroxyphenylacetaldehyde as a commercial chemical for laboratories, research, industry and production with the corresponding contact details.
[0] - Specialist and research articles in scientific journals via PubMed: 3,4-Dihydroxyphenylacetaldehyde.
Last update: 2026-02-04
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