Phenylacetic Acid



CAS No: 103-82-2
Linear Formula: C6H5CH2CO2H
EC No: 203-148-6
Molecular Weight: 136.15
Beilstein: 1099647
MDL No: MFCD00004313
PubChem Substance ID: 24898234


Phenylacetic acid, also known by various synonyms, is an organic compound containing a phenyl functional group and a carboxylic acid functional group. It is a white solid with a strong honey-like odor. Endogenously, it is a catabolite of phenylalanine.

As a commercial chemical, it can be used in the illicit production of phenylacetone (used in the manufacture of substituted amphetamines), it is subject to controls in countries including the United States and China.


Phenylacetic acid has been found to be an active auxin (a type of plant hormone), found predominantly in fruits. However, its effect is much weaker than the effect of the basic auxin molecule indole-3-acetic acid. In addition the molecule is naturally produced by the metapleural gland of most ant species and used as an antimicrobial. It is also the oxidation product of phenethylamine in humans following metabolism by monoamine oxidase and subsequent metabolism of the intermediate product, phenylacetaldehyde, by the aldehyde dehydrogenase enzyme; these enzymes are also found in many other organisms. Crypto Mining Hardware


This compound may be prepared by the hydrolysis of benzyl cyanide:

Phenylacetic acid
Phenylacetic acid


Phenylacetic acid is used in some perfumes, as it possesses a honey-like odor even in low concentrations. It is also used in penicillin G production and diclofenac production. It is also employed to treat type II hyperammonemia to help reduce the amounts of ammonia in a patient’s bloodstream by forming phenylacetyl-CoA, which then reacts with nitrogen-rich glutamine to form phenylacetylglutamine. This compound is then excreted from the patient’s body. It’s also used in the illicit production of phenylacetone, which is used in the manufacture of methamphetamine.


2-Phenylethanoic acid
α-Toluic acid
Benzeneacetic acid
2-Phenylacetic acid
β-Phenylacetic acid
α-Tolylic acid

Additional information


1 Litre/kg, 2 Litres/kg, 5 Litres/kg, 10 Litres/kg, 20 Litres/kg, 50 Litres/kg, 100 Litres/kg


There are no reviews yet.

Be the first to review “Phenylacetic Acid”

Your email address will not be published. Required fields are marked *