4-Nitro-3-pyrazolecarboxylic acid
4-Nitro-3-pyrazolecarboxylic acid (CAS 5334-40-7) is a heterocyclic organic compound with the molecular formula C4H3N3O4 and a molecular weight of 157.08 g/mol. As a pyrazole derivative, it serves as a valuable building block in organic synthesis, particularly for the construction of more complex molecules. This compound is widely used in chemical research and development for creating novel chemical entities and exploring new synthetic pathways.

Chemical Synthesis Intermediate
Utilised as a key intermediate in the synthesis of diverse organic compounds. Its functional groups allow for various chemical transformations, making it a versatile reagent in research and development laboratories.
Heterocyclic Compound Research
Serves as a starting material or building block for the creation of novel heterocyclic structures. Its pyrazole core is of interest for medicinal chemistry and materials science applications.
Pharmaceutical Intermediate Development
A compound employed in the early stages of drug discovery and development pipelines. It can be incorporated into molecular scaffolds for potential pharmaceutical agents.
| Molecular weight | 157.08 |
|---|---|
| Empirical formula | C4H3N3O4 |
| Assay | 98% |
| Melting point | 223-225 °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) | 26-37/39 |
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-Nitro-3-pyrazolecarboxylic acid used for?
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4-Nitro-3-pyrazolecarboxylic acid is primarily used as a building block in chemical synthesis and heterocyclic compound research. It finds application as an intermediate in the development of potential pharmaceutical agents and novel organic molecules.
What is the CAS number and molecular formula for 4-Nitro-3-pyrazolecarboxylic acid?
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The CAS number for 4-Nitro-3-pyrazolecarboxylic acid is 5334-40-7, and its molecular formula is C4H3N3O4.
What grade and purity does Tech Serve Solutions supply for 4-Nitro-3-pyrazolecarboxylic acid?
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Tech Serve Solutions supplies 4-Nitro-3-pyrazolecarboxylic acid with a purity of 98%. This product is suitable for research and general chemical synthesis purposes. TSS does not represent this product as USP, BP, or EP grade.
How should 4-Nitro-3-pyrazolecarboxylic acid be handled safely?
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4-Nitro-3-pyrazolecarboxylic acid is classified with GHS07 symbol and a Warning signal word. It carries hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Safe handling requires wearing a dust mask type N95 (US), eyeshields, and gloves. Ensure adequate ventilation. Refer to the Safety Data Sheet (SDS) for comprehensive handling information.
Does Tech Serve Solutions export 4-Nitro-3-pyrazolecarboxylic acid?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 4-Nitro-3-pyrazolecarboxylic acid, serving customers worldwide.
How can I request a quote or sample of 4-Nitro-3-pyrazolecarboxylic acid?
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To request a quote or a sample of 4-Nitro-3-pyrazolecarboxylic acid, please use the contact form on our website or reach out to our sales team directly. Provide the product name and CAS number for prompt service.
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