3-Bromo-4-nitrobenzoic acid
3-Bromo-4-nitrobenzoic acid (CAS: 101420-81-9; Formula: O2NC6H3(Br)CO2H) is a valuable organic compound with a molecular weight of 246.01. Supplied by Tech Serve Solutions with an assay of 97%, this chemical serves as a key building block in organic synthesis. Its primary application lies in facilitating reactions such as the Bartoli indole synthesis, where it acts as a substrate linked to a solid support via its carboxyl group. It is a versatile reagent for researchers and manufacturers.

Bartoli Indole Synthesis
3-Bromo-4-nitrobenzoic acid is utilized as a substrate in the Bartoli indole synthesis. The carboxyl group allows for linkage to a solid support, enabling its use in this important reaction for constructing indole rings.
Organic Synthesis Intermediate
As a functionalized aromatic carboxylic acid, this compound is a versatile intermediate for synthesizing more complex organic molecules. The presence of both bromine and nitro groups offers distinct sites for further chemical transformations.
Research and Development
This chemical is employed in research laboratories for exploring novel synthetic pathways and developing new chemical entities. Its defined structure makes it suitable for studies in medicinal chemistry and materials science.
| Molecular weight | 246.01 |
|---|---|
| Linear formula | O2NC6H3(Br)CO2H |
| Assay | 97% |
| Application | Substrate linked to a solid support via the carboxyl group which is used in a Bartoli synthesis of indoles.1 |
| Melting point | 200-204 °C |

Hazard statements
- H302Harmful if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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-Bromo-4-nitrobenzoic acid used for?
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3-Bromo-4-nitrobenzoic acid is primarily used as a substrate in the Bartoli indole synthesis and as a versatile intermediate in general organic synthesis for creating complex molecules.
What is the CAS number and chemical formula for 3-Bromo-4-nitrobenzoic acid?
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The CAS number for 3-Bromo-4-nitrobenzoic acid is 101420-81-9, and its chemical formula is O2NC6H3(Br)CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Bromo-4-nitrobenzoic acid with an assay of 97%. This is a technical/research grade chemical, and TSS does not represent it as USP, BP, or EP grade.
What are the safety considerations when handling 3-Bromo-4-nitrobenzoic acid?
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3-Bromo-4-nitrobenzoic acid is classified with GHS07 symbol and a Warning signal word, presenting hazards H302 (Harmful if swallowed) and H319 (Causes serious eye irritation). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Always consult the Safety Data Sheet (SDS) before handling.
How is 3-Bromo-4-nitrobenzoic acid typically packed and shipped?
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3-Bromo-4-nitrobenzoic acid is carefully packed and exported by Tech Serve Solutions in compliance with international shipping regulations for chemical substances.
How can I request a sample or quote for 3-Bromo-4-nitrobenzoic acid?
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To request a sample or a quotation for 3-Bromo-4-nitrobenzoic acid, please contact our sales department through the website or by calling our main office.
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