Phenylacetic acid
Phenylacetic acid (CAS: 103-82-2, Formula: C₆H₅CH₂CO₂H, Molar Mass: 136.15 g/mol) is a carboxylic acid commonly found in plants, such as Citrus aurantium. Characterised by its role as an organic building block and its presence in phytochemicals, it is primarily employed in chemical synthesis and research applications, including cell biology and nutrition studies. Tech Serve Solutions supplies this compound with a specified purity.
- IUPAC
- α-Tolylic acid,Benzeneacetic acid,PAA
- Synonyms
- Benzeneacetic acidα-Tolylic acidPAA

Chemical Synthesis Intermediate
Phenylacetic acid serves as a key intermediate in the synthesis of various organic compounds. Its structure allows for diverse chemical transformations, making it valuable in the development of pharmaceuticals and other fine chemicals.
Research and Development
This compound is utilised in research laboratories for studies in cell biology and nutrition. Its natural occurrence in plants also makes it a subject of interest in phytochemical investigations.
Precursor for Fine Chemicals
As an organic building block, phenylacetic acid is used in the production of fine chemicals. It contributes to the creation of more complex molecules through established synthetic routes.
| Molecular weight | 136.15 |
|---|---|
| Linear formula | C6H5CH2CO2H |
| Assay | ≥98.0% (T) |
| Grade | purum |
| Boiling point | 265 °C(lit.) |
| Density | 1.081 g/mL at 25 °C(lit.) |
| Vapour pressure | 1 mmHg (97 °C) |
| Melting point | 76-78 °C(lit.) |
| Vapour density | ~4 (vs air) |
| Impurities tested | ≤0.5% water |
| Suitability | plant cell culture tested |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 132 °C / 269.6 °F |
| Transport (UN / ADR) | UN 3335 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Phenylacetic acid used for?
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Phenylacetic acid is primarily used as an intermediate in chemical synthesis, in research for cell biology and nutrition studies, and as a precursor for fine chemicals.
What is the CAS number and formula for Phenylacetic acid?
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The CAS number for Phenylacetic acid is 103-82-2, and its chemical formula is C₆H₅CH₂CO₂H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Phenylacetic acid with a grade of 'purum' and an assay of ≥98.0% (T), with impurities of ≤0.5% water. We do not represent this product as USP, BP, or EP grade.
How should Phenylacetic acid be handled safely?
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Phenylacetic acid is classified with a Warning signal word and hazards H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Appropriate personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Ensure good ventilation.
How is Phenylacetic acid exported and shipped?
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Tech Serve Solutions, as a global supplier and exporter, ships Phenylacetic acid according to international regulations. Specific packaging and shipping details are available upon request.
How can I request a quote or sample for Phenylacetic acid?
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To request a quote or sample for Phenylacetic acid, please contact our sales team through the website or by phone, providing your details and the quantity required.
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