1,5-Dimethyl-1H-pyrazole-3-carboxylic acid
1,5-Dimethyl-1H-pyrazole-3-carboxylic acid (CAS 5744-59-2) is a heterocyclic organic compound with the molecular formula C6H8N2O2 and a molecular weight of 140.14 g/mol. This pyrazole derivative serves as a valuable building block in organic synthesis, particularly within the pharmaceutical and agrochemical industries. It is typically supplied at an assay of 97% and requires storage at 2-8°C to maintain its integrity.
- Synonyms
- C6H8N2O21,5-Dimethylpyrazole-3-carboxylic acid

Pharmaceutical Intermediate
Utilised in the synthesis of active pharmaceutical ingredients (APIs) and complex drug molecules. Its pyrazole core offers a versatile scaffold for medicinal chemistry research.
Agrochemical Synthesis
A key building block for the development of novel pesticides, herbicides, and fungicides. The heterocyclic structure can impart specific biological activities.
Organic Synthesis Reagent
Employed as a versatile synthon in academic and industrial research for the construction of diverse organic structures. Its reactivity allows for various derivatizations.
| Molecular weight | 140.14 |
|---|---|
| Empirical formula | C6H8N2O2 |
| Assay | 97% |
| Storage temperature | 2-8°C |
| Melting point | 170-176 °C |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| 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 1,5-Dimethyl-1H-pyrazole-3-carboxylic acid used for?
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1,5-Dimethyl-1H-pyrazole-3-carboxylic acid is primarily used as a building block in organic synthesis, with notable applications in the development of pharmaceuticals and agrochemicals.
What are the CAS number and formula for this compound?
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The CAS number is 5744-59-2, and the molecular formula is C6H8N2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,5-Dimethyl-1H-pyrazole-3-carboxylic acid with an assay of 97%. This product is not supplied as USP, BP, or EP grade.
How should 1,5-Dimethyl-1H-pyrazole-3-carboxylic acid be handled?
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This compound is classified as harmful if swallowed and causes skin, eye, and respiratory irritation (H302, H315, H319, H335). Handle with appropriate personal protective equipment in a well-ventilated area. Avoid breathing dust. In case of contact, rinse cautiously with water. If eye irritation persists, seek medical advice.
Is this compound a controlled substance?
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The provided data does not indicate that 1,5-Dimethyl-1H-pyrazole-3-carboxylic acid is a controlled substance.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. Products are packed according to international shipping regulations to ensure safe transit and compliance.
How can I request a sample or quote for 1,5-Dimethyl-1H-pyrazole-3-carboxylic acid?
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Please contact our sales team via the website or email to request a sample or a quotation for this product.
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