3,5-Dinitrobenzoic acid
3,5-Dinitrobenzoic acid (CAS: 99-34-3) is a notable organic compound with the molecular formula C7H4N2O6 and a molecular weight of 212.12 g/mol. It presents as a crystalline solid and is a valuable intermediate in chemical synthesis. Its applications primarily lie in its use as a building block for more complex organic molecules and in various chemical reactions. Its structure features a carboxylic acid group alongside two nitro substituents on the benzene ring, contributing to its reactivity.
- Synonyms
- (O2N)2C6H3CO2H

Chemical Synthesis Intermediate
3,5-Dinitrobenzoic acid serves as a key intermediate in the synthesis of various organic compounds. Its reactive functional groups allow for further chemical modifications to create more complex molecules.
Organic Building Block
This compound acts as a fundamental building block in organic chemistry. It is employed in the construction of diverse molecular structures within research and development settings.
Reagent in Analytical Chemistry
Due to its chemical properties, 3,5-Dinitrobenzoic acid can be utilised as a reagent in specific analytical procedures, though its primary utility is in synthetic chemistry.
| Molecular weight | 212.12 |
|---|---|
| Linear formula | (O2N)2C6H3CO2H |
| Suitability | suitable for photographic applications |
| Melting point | 204-206 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H413May cause long-lasting harmful effects to aquatic life
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) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26 |
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 3,5-Dinitrobenzoic acid primarily used for?
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3,5-Dinitrobenzoic acid is primarily used as an intermediate in chemical synthesis and as an organic building block for creating more complex molecules.
What are the CAS number and molecular formula for 3,5-Dinitrobenzoic acid?
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The CAS number for 3,5-Dinitrobenzoic acid is 99-34-3, and its molecular formula is C7H4N2O6.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,5-Dinitrobenzoic acid in a technical or research grade. We do not represent this product as USP, BP, or EP grade.
What are the main safety hazards associated with 3,5-Dinitrobenzoic acid?
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3,5-Dinitrobenzoic acid is classified with GHS07 symbol and carries a Warning signal word. It is harmful if swallowed (H302), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). It may also cause long lasting harmful effects to aquatic life (H413). Appropriate personal protective equipment, including dust masks (N95), eyeshields, and gloves, should be used when handling this chemical.
Is 3,5-Dinitrobenzoic acid available for export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 3,5-Dinitrobenzoic acid.
How can I request a sample or quote for 3,5-Dinitrobenzoic acid?
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To request a sample or a quote for 3,5-Dinitrobenzoic acid, please contact our sales department through the website or by telephone.
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