1-(4-Methoxyphenyl)-5-methyl-1H-pyrazole-4-carboxaldehyde
1-(4-Methoxyphenyl)-5-methyl-1H-pyrazole-4-carboxaldehyde (CAS: 423768-44-9), with the molecular formula C12H12N2O2 and a molecular weight of 216.24, is a chemical intermediate. As a pyrazole derivative featuring an aldehyde functional group, it serves as a valuable building block in organic synthesis, particularly within chemical research and development. Its structure lends itself to further chemical modification for creating more complex molecules.

Organic Synthesis Intermediate
This compound functions as a key intermediate in the synthesis of diverse organic molecules. The presence of both a pyrazole ring and an aldehyde group allows for a variety of chemical transformations.
Building Block for Heterocycles
It is utilised as a fundamental building block for constructing more complex heterocyclic structures. Its specific arrangement of functional groups is advantageous in designing novel chemical entities.
Research and Development
Applied in laboratory settings for chemical research and the development of new synthetic routes and compounds. It is suitable for investigating new chemical reactions and material properties.
| Molecular weight | 216.24 |
|---|---|
| Empirical formula | C12H12N2O2 |
| Melting point | 75-80 °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-(4-Methoxyphenyl)-5-methyl-1H-pyrazole-4-carboxaldehyde used for?
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1-(4-Methoxyphenyl)-5-methyl-1H-pyrazole-4-carboxaldehyde is primarily used as an intermediate and building block in organic synthesis, particularly in research and development for creating more complex molecules.
What is the CAS number and molecular formula?
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The CAS number for 1-(4-Methoxyphenyl)-5-methyl-1H-pyrazole-4-carboxaldehyde is 423768-44-9, and its molecular formula is C12H12N2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical for research and development purposes. The specific grade and purity are available upon request. We do not represent this product as USP, BP, EP, or for pharmaceutical, nutraceutical, or food use.
What are the safety and handling precautions?
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This compound is classified with a GHS07 symbol and a Warning signal word. It carries hazard statement H302 (Harmful if swallowed) and European hazard code Xn with risk statement 22. Appropriate personal protective equipment should be used, and it should be handled in a well-ventilated area. Consult the Safety Data Sheet for comprehensive handling information.
Is this chemical controlled or scheduled?
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The provided data does not indicate that this chemical is a controlled or scheduled substance.
How is this product packed and exported?
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Tech Serve Solutions, as a specialist global supplier and exporter, packs and ships chemicals in compliance with international regulations for safe transport and export.
How can I request a sample or quote?
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To request a sample or a quotation for 1-(4-Methoxyphenyl)-5-methyl-1H-pyrazole-4-carboxaldehyde, please contact our sales department through the website or by phone.
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