ContaminantDB: Phenylacetaldehyde

Identification Taxonomy Biological Properties Physical Properties Toxicity Profile Spectra Concentrations Links References Targets (2)XML

Record Information

Version

1.0

Creation Date

2014-09-11 05:17:23 UTC

Update Date

2026-05-14 17:30:10 UTC

Accession Number

CHEM003762

Identification

Common Name

Phenylacetaldehyde

Class

Small Molecule

Description

Phenylacetaldehyde is one important oxidation-related aldehyde. Exposure to styrene gives phenylacetaldehyde as a secondary metabolite. Styrene has been implicated as reproductive toxicant, neurotoxicant, or carcinogen in vivo or in vitro. Phenylacetaldehyde could be formed by diverse thermal reactions during the cooking process together with C8 compounds is identified as a major aroma- active compound in cooked pine mushroom. Phenylacetaldehyde is readily oxidized to phenylacetic acid. Therefore will eventually be hydrolyzed and oxidized to yield phenylacetic acid that will be excreted primarily in the urine in conjugated form. (1, 2, 3). Phenylacetaldehyde is an aromatic compound found in buckwheat, chocolate and many other foods and flowers. It is also responsible for the antibiotic activity of maggot therapy and it is also a compound that is added to cigarettes to improve their aroma.

Contaminant Sources

Disinfection Byproducts
EAFUS Chemicals
FooDB Chemicals
HMDB Contaminants - Feces
HPV EPA Chemicals
T3DB toxins
Tobacco Smoke Compounds
ToxCast & Tox21 Chemicals

Contaminant Type

Cigarette Toxin
Food Toxin
Metabolite
Natural Compound
Organic Compound
Plant Toxin

Chemical Structure

MOL SDF PDB SMILES InChI

Synonyms

Value	Source
1-oxo-2-Phenylethane	ChEBI
2-Phenylacetaldehyde	ChEBI
2-Phenylethanal	ChEBI
alpha-Phenylacetaldehyde	ChEBI
alpha-Tolualdehyde	ChEBI
alpha-Toluic aldehyde	ChEBI
Benzacetaldehyde	ChEBI
Benzeneacetaldehyde	ChEBI
Hyacinthin	ChEBI
Phenacetaldehyde	ChEBI
Phenylacetic aldehyde	ChEBI
a-Phenylacetaldehyde	Generator
Α-phenylacetaldehyde	Generator
a-Tolualdehyde	Generator
Α-tolualdehyde	Generator
a-Toluic aldehyde	Generator
Α-toluic aldehyde	Generator
.alpha.-toluic aldehyde	HMDB
Benzenacetaldehyde	HMDB
Benzylcarboxaldehyde	HMDB
FEMA no. 2974	HMDB
Oxophenylethane	HMDB
Phenyl-acetaldehyde	HMDB
Phenylethanal	HMDB

Chemical Formula

C₈H₈O

Average Molecular Mass

120.149 g/mol

Monoisotopic Mass

120.058 g/mol

CAS Registry Number

122-78-1

IUPAC Name

2-phenylacetaldehyde

Traditional Name

phenylacetaldehyde

SMILES

O=CCC1=CC=CC=C1

InChI Identifier

InChI=1S/C8H8O/c9-7-6-8-4-2-1-3-5-8/h1-5,7H,6H2

InChI Key

DTUQWGWMVIHBKE-UHFFFAOYSA-N

Chemical Taxonomy

Description

belongs to the class of organic compounds known as phenylacetaldehydes. Phenylacetaldehydes are compounds containing a phenylacetaldehyde moiety, which consists of a phenyl group substituted at the second position by an acetalydehyde.

Kingdom

Organic compounds

Super Class

Benzenoids

Class

Benzene and substituted derivatives

Sub Class

Phenylacetaldehydes

Direct Parent

Phenylacetaldehydes

Alternative Parents

Substituents

Phenylacetaldehyde
Alpha-hydrogen aldehyde
Organic oxygen compound
Organic oxide
Hydrocarbon derivative
Organooxygen compound
Carbonyl group
Aldehyde
Aromatic homomonocyclic compound

Molecular Framework

Aromatic homomonocyclic compounds

External Descriptors

alpha-CH2-containing aldehyde (CHEBI:16424 )
phenylacetaldehydes (CHEBI:16424 )
an aryl aldehyde (PHENYLACETALDEHYDE )

Biological Properties

Status

Detected and Not Quantified

Origin

Endogenous

Cellular Locations

Cytoplasm
Extracellular

Biofluid Locations

Not Available

Tissue Locations

Not Available

Pathways

Not Available

Applications

Not Available

Biological Roles

Not Available

Chemical Roles

Not Available

Physical Properties

State

Solid

Appearance

White powder.

Experimental Properties

Property	Value
Melting Point	33.5°C
Boiling Point	195°C
Solubility	Not Available

Predicted Properties

Property	Value	Source
Water Solubility	2.08 g/L	ALOGPS
logP	1.75	ALOGPS
logP	1.45	ChemAxon
logS	-1.8	ALOGPS
pKa (Strongest Acidic)	14.98	ChemAxon
pKa (Strongest Basic)	-7	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	1	ChemAxon
Hydrogen Donor Count	0	ChemAxon
Polar Surface Area	17.07 Å²	ChemAxon
Rotatable Bond Count	2	ChemAxon
Refractivity	36.44 m³·mol⁻¹	ChemAxon
Polarizability	12.91 Å³	ChemAxon
Number of Rings	1	ChemAxon
Bioavailability	1	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	Yes	ChemAxon
MDDR-like Rule	No	ChemAxon

Spectra

Spectrum Type	Description	Splash Key	View
GC-MS	GC-MS Spectrum - GC-MS (Non-derivatized)	splash10-00kf-9400000000-bec6e42b47ad1306960f	Spectrum
GC-MS	GC-MS Spectrum - GC-MS (Non-derivatized)	splash10-014l-9700000000-152bdd5b77d6af9657ec	Spectrum
GC-MS	GC-MS Spectrum - EI-B (Non-derivatized)	splash10-0006-9000000000-d37cbef4100302e951de	Spectrum
GC-MS	GC-MS Spectrum - GC-MS (Non-derivatized)	splash10-00kf-9400000000-bec6e42b47ad1306960f	Spectrum
GC-MS	GC-MS Spectrum - GC-MS (Non-derivatized)	splash10-014l-9700000000-152bdd5b77d6af9657ec	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Non-derivatized)	splash10-00kf-9400000000-e75d2f0bf82f16a80388	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Non-derivatized)	splash10-00kf-9400000000-32573b7f6ab690a27e3e	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Non-derivatized)	splash10-0006-5900000000-21e85148d15d190553c4	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Non-derivatized)	splash10-0006-5900000000-4471e0916a32cf4df7ac	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Non-derivatized)	splash10-0006-5900000000-650012e69d0a89a2fd4a	Spectrum
GC-MS	GC-MS Spectrum - GC-EI-TOF (Non-derivatized)	splash10-0006-5900000000-c80b65e383f833509e0f	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	splash10-0006-9200000000-b3923f5fae42c664ac4a	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	Not Available	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)	splash10-0udi-4900000000-5001b07cef2fed3caa2c	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)	splash10-004i-9100000000-048e2f1b42f7bd5104be	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)	splash10-0fb9-9000000000-fc1fbd4e7c49f44ba764	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - EI-B (HITACHI M-80A) , Positive	splash10-0006-9000000000-bc0fa2967da6872f3a47	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - 35V, Positive	splash10-0ufr-9700000000-507b63b585578b670628	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-00di-0900000000-8c96fee71b311d751181	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-0fk9-2900000000-4b405668c302f69a4bc7	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-0ufr-9300000000-fe46a418a2f0124566c3	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-014i-0900000000-4e064e0123dc18b6136a	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-014i-1900000000-02fff0bd874e6e8616bb	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-004l-9200000000-340c7a60a7708fa801f1	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-002f-9000000000-e37fda57674e1a53ea10	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-0006-9000000000-2071e5b3f45157a1da9c	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-002f-9100000000-219bfc0a518871479977	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-00kf-9300000000-3fb47a0274f5792b4bd1	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-0006-9000000000-5671d4c535a6553aaf0d	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-0006-9000000000-cc66f13f72898a397be6	Spectrum
MS	Mass Spectrum (Electron Ionization)	splash10-0006-9100000000-e7ef9a5c5a6cc5674cd1	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum