4-Amino-3,5-dichlorobenzoic acid
4-Amino-3,5-dichlorobenzoic acid (CAS: 56961-25-2) is an aromatic amino acid derivative with the molecular formula H₂NC₆H₂(Cl)₂CO₂H and a molecular weight of 206.03 g/mol. This compound serves as a valuable building block in chemical synthesis. Its specific structure, featuring amino and carboxylic acid functional groups alongside two chlorine substituents, makes it useful in the development of new chemical entities and advanced materials, particularly within chemical biology and peptide chemistry.
- Synonyms
- H2NC6H2(Cl)2CO2H

Chemical Synthesis Intermediate
Utilised as a precursor in the synthesis of more complex organic molecules. Its functional groups allow for various chemical transformations, making it a versatile intermediate in multi-step synthetic pathways.
Peptide Chemistry
Incorporated into peptide chains as an unnatural amino acid derivative to modify peptide structure and function. This allows for the exploration of novel peptide analogues with unique biochemical properties.
Chemical Biology Research
Employed in research settings to develop probes or modified biomolecules for studying biological processes. Its distinct chemical features can be leveraged to create tools for investigating molecular interactions.
Material Science
Potentially used in the development of specialised polymers or functional materials where its specific aromatic and halogenated structure can impart desired properties.
| Molecular weight | 206.03 |
|---|---|
| Linear formula | H2NC6H2(Cl)2CO2H |
| Assay | 98% |
| Melting point | 290-293 °C(lit.) |

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 |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| 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 4-Amino-3,5-dichlorobenzoic acid used for?
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4-Amino-3,5-dichlorobenzoic acid is primarily used as an intermediate in chemical synthesis, particularly in peptide chemistry and chemical biology research, to create novel compounds and modified biomolecules.
What is the CAS number and formula for 4-Amino-3,5-dichlorobenzoic acid?
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The CAS number is 56961-25-2, and the linear formula is H₂NC₆H₂(Cl)₂CO₂H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Amino-3,5-dichlorobenzoic acid with a purity of 98%. This product is suitable for research and chemical synthesis purposes and is not represented as USP, BP, or EP grade.
How should 4-Amino-3,5-dichlorobenzoic acid be handled safely?
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Handle with care, using a dust mask (N95), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. It is classified as a Warning with hazards H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation).
Does Tech Serve Solutions export 4-Amino-3,5-dichlorobenzoic acid?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 4-Amino-3,5-dichlorobenzoic acid, catering to international research and industrial needs.
How can I request a quote or sample?
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To request a quote or sample of 4-Amino-3,5-dichlorobenzoic acid, please use the contact form on our website or reach out to our sales team directly.
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