3-Cyclopropylpyrazole-5-carboxylic acid
3-Cyclopropylpyrazole-5-carboxylic acid (CAS: 401629-04-7), with the molecular formula C7H8N2O2 and a molecular weight of 152.15 g/mol, is a heterocyclic building block. It is primarily utilised in chemical synthesis, particularly within research and development settings for the creation of novel compounds. Its pyrazole core and functional groups make it a valuable intermediate for medicinal chemistry and materials science.

Organic Synthesis Intermediate
Serves as a key building block in multi-step organic synthesis pathways. Its structure allows for diverse chemical modifications, enabling the construction of complex molecular architectures.
Medicinal Chemistry Research
A valuable scaffold for the development of new pharmaceutical agents. The pyrazole moiety is frequently found in biologically active molecules, making this compound of interest for drug discovery programmes.
Materials Science
Can be incorporated into the design of functional materials, leveraging its specific chemical properties for applications in areas such as polymer science or organic electronics.
| Molecular weight | 152.15 |
|---|---|
| Empirical formula | C7H8N2O2 |
| Assay | 97% |
| Melting point | 195-199 °C(lit.) |

Hazard statements
- H301Toxic if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| 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-Cyclopropylpyrazole-5-carboxylic acid used for?
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3-Cyclopropylpyrazole-5-carboxylic acid is primarily used as a building block in organic synthesis, with applications in medicinal chemistry research and potentially in materials science.
What are the CAS number and molecular formula for 3-Cyclopropylpyrazole-5-carboxylic acid?
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The CAS number is 401629-04-7, and the molecular formula is C7H8N2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Cyclopropylpyrazole-5-carboxylic acid with an assay of 97%. This is a research-grade chemical and is not represented as USP, BP, EP, or any pharmacopoeia standard.
How should 3-Cyclopropylpyrazole-5-carboxylic acid be handled safely?
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This compound is classified as Danger with hazards H301 (Toxic if swallowed) and H319 (Causes serious eye irritation). Appropriate personal protective equipment including a dust mask type N95, eyeshields, faceshields, and gloves must be worn. Handle in a well-ventilated area. Follow precautionary statements P301 + P310 (IF SWALLOWED: Immediately call a POISON CENTER/doctor) and P305 + P351 + P338 (IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing).
Is this chemical a controlled substance?
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Based on the provided data, there is no indication that 3-Cyclopropylpyrazole-5-carboxylic acid is a controlled substance.
How is this product packed and shipped?
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As a global supplier and exporter, Tech Serve Solutions ensures products are packed and shipped in compliance with all relevant international regulations for hazardous materials.
How can I request a sample or quote for 3-Cyclopropylpyrazole-5-carboxylic acid?
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To request a sample or a quote, please visit the Tech Serve Solutions website or contact our sales department directly with your requirements.
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