4-Aminophenylacetic acid
4-Aminophenylacetic acid (CAS: 1197-55-3), with the molecular formula H₂NC₆H₄CH₂CO₂H and a molecular weight of 151.16 g/mol, is a derivative of the unnatural amino acid. It finds utility as a building block in chemical synthesis and peptide chemistry. This compound is essential for researchers and manufacturers involved in developing novel molecules and materials.

Chemical Synthesis
4-Aminophenylacetic acid serves as a versatile intermediate in the synthesis of complex organic molecules. Its reactive amine and carboxylic acid functionalities allow for diverse derivatisation pathways in multi-step syntheses.
Peptide Chemistry
As an unnatural amino acid derivative, it is valuable in the construction of modified peptides. This enables the exploration of altered peptide structures for research in biochemistry and drug discovery.
Research and Development
This compound is widely used in academic and industrial research laboratories for a variety of chemical and biological investigations. It supports the development of new compounds and materials.
| Molecular weight | 151.16 |
|---|---|
| Linear formula | H2NC6H4CH2CO2H |
| Assay | 98% |
| Melting point | 201 °C (dec.)(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 4-Aminophenylacetic acid used for?
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4-Aminophenylacetic acid is primarily used in chemical synthesis and peptide chemistry, serving as a building block for creating more complex molecules and modified peptides.
What is the CAS number and molecular formula for 4-Aminophenylacetic acid?
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The CAS number for 4-Aminophenylacetic acid is 1197-55-3, and its molecular formula is H₂NC₆H₄CH₂CO₂H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Aminophenylacetic acid with an assay of 98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 4-Aminophenylacetic acid be handled safely?
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When handling 4-Aminophenylacetic acid, it is essential to wear eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used. Please consult the Safety Data Sheet for comprehensive safety information.
Is 4-Aminophenylacetic acid a controlled substance?
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Based on the provided data, 4-Aminophenylacetic acid is not listed as a controlled substance. However, users should always verify local regulations.
How is 4-Aminophenylacetic acid packed and shipped?
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4-Aminophenylacetic acid is carefully packed to ensure product integrity during transit and is exported globally by Tech Serve Solutions in compliance with all relevant shipping regulations.
How can I request a quote or sample?
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To request a quote or a sample of 4-Aminophenylacetic acid, please contact our sales team through the TSS website or by phone, providing your specific requirements.
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