1,3-Diphenyl-1H-pyrazole-4-carboxaldehyde
1,3-Diphenyl-1H-pyrazole-4-carboxaldehyde (CAS 21487-45-6) is a heterocyclic organic compound with the molecular formula C16H12N2O and a molecular weight of 248.28 g/mol. It serves as a valuable building block in organic synthesis, particularly within pharmaceutical research and materials science. Its aldehyde functionality and pyrazole core make it a versatile intermediate for creating more complex molecular structures. Tech Serve Solutions supplies this chemical with an assay of 97%.
- Synonyms
- 1,3-Diphenyl-1H-pyrazole-4-carboxaldehydeC16H12N2O

Organic Synthesis Intermediate
This compound acts as a key intermediate in the synthesis of various organic molecules. Its aldehyde group can participate in numerous reactions, allowing for the introduction of diverse functional groups.
Pharmaceutical Research
As a heterocyclic building block, it is employed in the development of novel pharmaceutical agents. The pyrazole moiety is present in many biologically active compounds.
Materials Science
Its structure lends itself to applications in materials science, potentially in the development of dyes, ligands, or functional polymers.
| Molecular weight | 248.28 |
|---|---|
| Empirical formula | C16H12N2O |
| Assay | 97% |
| Melting point | 142-146 °C |


Hazard statements
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 37/38-41 |
| Safety statements (S) | 26-39 |
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 1,3-Diphenyl-1H-pyrazole-4-carboxaldehyde used for?
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1,3-Diphenyl-1H-pyrazole-4-carboxaldehyde is primarily used as a building block in organic synthesis, particularly for research in pharmaceutical chemistry and materials science.
What are the CAS number and formula for this compound?
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The CAS number is 21487-45-6 and the empirical formula is C16H12N2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,3-Diphenyl-1H-pyrazole-4-carboxaldehyde with an assay of 97%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeia grades.
How should 1,3-Diphenyl-1H-pyrazole-4-carboxaldehyde be handled safely?
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This compound is classified as a Danger. It may cause skin irritation, serious eye damage, and respiratory irritation (H315, H318, H335). Handle with a dust mask (type N95), eyeshields, and gloves. Avoid breathing dust and ensure good ventilation. Refer to the Safety Data Sheet for comprehensive handling instructions.
Is this chemical available for export globally?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 1,3-Diphenyl-1H-pyrazole-4-carboxaldehyde.
How can I request a sample or quote for 1,3-Diphenyl-1H-pyrazole-4-carboxaldehyde?
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Please contact our sales team through the website or by phone to request a sample or a quotation for 1,3-Diphenyl-1H-pyrazole-4-carboxaldehyde.
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