1-Ethyl-5-methyl-1H-pyrazole-3-carboxylic acid
1-Ethyl-5-methyl-1H-pyrazole-3-carboxylic acid (CAS: 50920-46-2; C7H10N2O2) is a heterocyclic building block with a molecular weight of 154.17 g/mol. This pyrazole derivative serves as a valuable intermediate in organic synthesis, particularly within the pharmaceutical and agrochemical sectors. Its specific structure makes it suitable for incorporation into more complex molecular architectures, facilitating the development of novel compounds with potential biological activity. Tech Serve Solutions supplies this chemical for research and development purposes.

Pharmaceutical Intermediate
Utilised in the synthesis of active pharmaceutical ingredients (APIs) and drug discovery programmes. Its pyrazole core is a common motif in various therapeutic agents.
Agrochemical Synthesis
Serves as a building block for the development of new pesticides, herbicides, and fungicides. The heterocyclic structure can impart desired biological properties.
Organic Synthesis Reagent
A versatile reagent for constructing more complex organic molecules. It can participate in various coupling and derivatisation reactions.
Materials Science Research
Potentially used in the development of novel functional materials where heterocyclic moieties are required.
| Molecular weight | 154.17 |
|---|---|
| Empirical formula | C7H10N2O2 |
| Melting point | 136-141 °C |

Hazard statements
- H302Harmful if swallowed
| 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 1-Ethyl-5-methyl-1H-pyrazole-3-carboxylic acid used for?
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This compound is primarily used as a building block in organic synthesis, particularly in the development of pharmaceuticals and agrochemicals, and for general chemical research.
What is the CAS number and chemical formula for 1-Ethyl-5-methyl-1H-pyrazole-3-carboxylic acid?
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The CAS number is 50920-46-2, and the chemical formula is C7H10N2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound as a research or technical grade chemical. We do not represent it as USP, BP, EP, or any pharmacopoeia grade.
What are the safety and handling precautions for this chemical?
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This compound is classified as harmful if swallowed (H302). Handle with appropriate personal protective equipment, avoid ingestion, and ensure adequate ventilation. Refer to the Safety Data Sheet (SDS) for full details.
How is this chemical shipped and exported?
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Tech Serve Solutions, established in 1998, is a specialist global supplier and exporter of fine chemicals, pharmaceutical intermediates, and laboratory reagents. We handle all aspects of packing, shipping, and exporting worldwide.
How can I request a sample or quote for 1-Ethyl-5-methyl-1H-pyrazole-3-carboxylic acid?
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To request a sample or quote, please contact our sales team via the website or by phone. Provide the product name and CAS number for prompt service.
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