4-Amino-3-nitrobenzoic acid
4-Amino-3-nitrobenzoic acid (CAS: 1588-83-6), with the molecular formula H2NC6H3(NO2)CO2H and a molecular weight of 182.13 g/mol, is a specialised aromatic amino acid derivative. It is primarily utilised as a key building block in chemical synthesis, particularly within organic chemistry and peptide research. Its specific structure makes it valuable for introducing nitro and amino functionalities into complex molecules, supporting advancements in chemical biology and the development of unnatural amino acid derivatives.

Chemical Synthesis Intermediate
4-Amino-3-nitrobenzoic acid serves as a crucial intermediate in multi-step organic synthesis. Its functional groups allow for diverse reactions, enabling the construction of more complex chemical structures for research and development.
Peptide Chemistry
This compound finds application in peptide chemistry as a modified amino acid building block. It can be incorporated into peptide chains to alter their properties or to serve as a scaffold for further functionalisation.
Chemical Biology Research
Utilised in chemical biology, 4-Amino-3-nitrobenzoic acid aids in the study of biological processes at a molecular level. It can be employed in the synthesis of probes or modified biomolecules.
Unnatural Amino Acid Derivatives
As an unnatural amino acid derivative, it is used in the synthesis of novel amino acids with unique properties, expanding the scope of biochemical and pharmaceutical research.
| Molecular weight | 182.13 |
|---|---|
| Linear formula | H2NC6H3(NO2)CO2H |
| Assay | 97% |
| Melting point | 280 °C (dec.)(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) | 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 4-Amino-3-nitrobenzoic acid used for?
+
4-Amino-3-nitrobenzoic acid is used as an intermediate in chemical synthesis, particularly in organic chemistry, peptide chemistry, chemical biology research, and for creating unnatural amino acid derivatives.
What are the CAS number and molecular formula for 4-Amino-3-nitrobenzoic acid?
+
The CAS number for 4-Amino-3-nitrobenzoic acid is 1588-83-6, and its molecular formula is H2NC6H3(NO2)CO2H.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 4-Amino-3-nitrobenzoic acid with an assay of 97%. This is a technical/research grade product, and we do not represent it as USP, BP, EP, or any other pharmacopoeial standard.
How should 4-Amino-3-nitrobenzoic acid be handled?
+
4-Amino-3-nitrobenzoic acid may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves, in a well-ventilated area.
How is 4-Amino-3-nitrobenzoic acid shipped and exported?
+
Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 4-Amino-3-nitrobenzoic acid, adhering to international shipping and export regulations.
How can I request a quote or sample for 4-Amino-3-nitrobenzoic acid?
+
To request a quote or sample for 4-Amino-3-nitrobenzoic acid, please use the contact form on our website or contact our sales department directly.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis