3-Cyanophenylacetic acid
3-Cyanophenylacetic acid (CAS: 1878-71-3), with the molecular formula C9H7NO2 and a molecular weight of 161.16 g/mol, is a key organic building block. This compound is characterised by its carboxylic acid and nitrile functional groups, making it a versatile intermediate in various chemical syntheses. It is primarily employed in the development of complex organic molecules within research and industrial settings.

Organic Synthesis Intermediate
Serves as a fundamental building block in the synthesis of more complex organic molecules. Its dual functionality allows for diverse chemical transformations.
Pharmaceutical Research
Utilised in the early stages of drug discovery and development. It can be incorporated into synthetic routes for potential therapeutic agents.
Material Science
Investigated for its potential role in the development of novel materials. The cyano and carboxylic acid groups offer sites for polymerisation or functionalisation.
| Molecular weight | 161.16 |
|---|---|
| Empirical formula | C9H7NO2 |
| Assay | 95% |
| Melting point | 113-117 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H317May cause an allergic skin reaction
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-43 |
| Safety statements (S) | 36/37 |
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 3-Cyanophenylacetic acid used for?
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3-Cyanophenylacetic acid is primarily used as an intermediate and building block in organic synthesis, particularly in pharmaceutical research and material science development.
What are the CAS number and formula for 3-Cyanophenylacetic acid?
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The CAS number is 1878-71-3 and the molecular formula is C9H7NO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Cyanophenylacetic acid with an assay of 95%. We do not represent this product as USP, BP, or EP grade.
How should 3-Cyanophenylacetic acid be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (type N95), eyeshields, faceshields, and gloves. Avoid ingestion and skin contact. Refer to the Safety Data Sheet for comprehensive guidance.
Does TSS export 3-Cyanophenylacetic acid?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 3-Cyanophenylacetic acid.
How can I request a quote or sample for 3-Cyanophenylacetic acid?
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Please contact our sales team via the website or telephone to request a quote or arrange for a sample of 3-Cyanophenylacetic acid.
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