3,5-Pyrazoledicarboxylic acid monohydrate
3,5-Pyrazoledicarboxylic acid monohydrate (CAS 303180-11-2) is a heterocyclic organic compound with the molecular formula C5H4N2O4 · H2O and a molecular weight of 174.11 g/mol. It serves as a valuable building block in chemical synthesis, particularly within the realm of heterocyclic chemistry. Available from Tech Serve Solutions, this compound is supplied with an assay of 97%, suitable for research and development purposes.
- Synonyms
- C5H4N2O4 · H2O

Heterocyclic Synthesis
Utilised as a key intermediate for constructing more complex heterocyclic molecules. Its pyrazole core and carboxylic acid functionalities offer versatile reaction sites for further chemical modification.
Organic Chemistry Research
A useful reagent in academic and industrial laboratories for exploring novel synthetic pathways. It can be employed in the development of new organic compounds with potential applications.
Material Science Precursor
May serve as a precursor in the synthesis of novel materials or coordination polymers, leveraging its dicarboxylic acid structure for metal complexation.
| Molecular weight | 174.11 |
|---|---|
| Empirical formula | C5H4N2O4 · H2O |
| Assay | 97% |
| Melting point | 292-295 °C (dec.)(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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-Pyrazoledicarboxylic acid monohydrate used for?
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3,5-Pyrazoledicarboxylic acid monohydrate is primarily used as a building block in chemical synthesis, particularly for the creation of complex heterocyclic compounds and in organic chemistry research.
What is the CAS number and formula for 3,5-Pyrazoledicarboxylic acid monohydrate?
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The CAS number is 303180-11-2 and the empirical formula is C5H4N2O4 · H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,5-Pyrazoledicarboxylic acid monohydrate with an assay of 97%. This product is intended for research and chemical synthesis; it is not supplied as USP, EP, or BP grade.
What are the safety and handling considerations for this compound?
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According to safety data, this compound is classified with WGK Germany rating 3. Appropriate personal protective equipment, including eyeshields and gloves, should be used. A respirator with a P1 (EN143) or N95 (US) filter is recommended. Handle in a well-ventilated area.
How is 3,5-Pyrazoledicarboxylic acid monohydrate shipped?
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Tech Serve Solutions exports chemicals globally, adhering to all necessary shipping regulations for safe transport.
How can I request a quote or sample?
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To request a quote or sample, please use the contact form on our website or contact our sales department directly with your requirements.
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