4-Antipyrinecarboxaldehyde
4-Antipyrinecarboxaldehyde (CAS 950-81-2) is an organic compound with the formula C12H12N2O2 and a molecular weight of 216.24 g/mol. This chemical intermediate, often referred to as Antipyraldehyde, functions as a valuable building block in organic synthesis. Its primary utility lies in its role as a precursor for the creation of more complex molecular structures, including Schiff bases and heterocyclic compounds, making it a useful reagent in research and development settings.
- IUPAC
- 2,3-Dimethyl-5-oxo-1-phenyl-3-pyrazoline-4-carboxaldehyde,Antipyraldehyde

Synthesis of Schiff Bases
4-Antipyrinecarboxaldehyde serves as a key aldehyde component in the condensation reactions to form Schiff bases. These derivatives can exhibit diverse properties and find applications in coordination chemistry and materials science.
Organic Building Block
As a functionalized pyrazolone derivative, this compound is employed as a versatile building block in the synthesis of various organic molecules. Its reactive aldehyde group allows for a range of chemical transformations.
Research and Development
This chemical is utilised in R&D laboratories for exploring novel synthetic pathways and developing new chemical entities. Its structure lends itself to incorporation into complex molecular architectures.
| Molecular weight | 216.24 |
|---|---|
| Empirical formula | C12H12N2O2 |
| Assay | 97% |
| Application | 4-Antipyrinecarboxaldehyde was used in the synthesis of a new crown ether-antipyrine schiffs base1. |
| Melting point | 162-165 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- 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) | 36/37/38 |
| Safety statements (S) | 26-36/37/39 |
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 4-Antipyrinecarboxaldehyde used for?
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4-Antipyrinecarboxaldehyde is primarily used as a building block in organic synthesis, particularly for creating Schiff bases and other complex organic molecules in research and development settings.
What are the CAS number and chemical formula for 4-Antipyrinecarboxaldehyde?
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The CAS number for 4-Antipyrinecarboxaldehyde is 950-81-2, and its chemical formula is C12H12N2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Antipyrinecarboxaldehyde with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 4-Antipyrinecarboxaldehyde be handled safely?
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Handle 4-Antipyrinecarboxaldehyde with appropriate personal protective equipment, including a dust mask (N95 type), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. It is classified as causing skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335).
Is 4-Antipyrinecarboxaldehyde a controlled substance?
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The provided data does not indicate that 4-Antipyrinecarboxaldehyde is a controlled substance.
How is 4-Antipyrinecarboxaldehyde packed, shipped, and exported?
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4-Antipyrinecarboxaldehyde is carefully packed to ensure safe transit and is available for export globally by Tech Serve Solutions.
How can I request a sample or quote for 4-Antipyrinecarboxaldehyde?
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To request a sample or quote for 4-Antipyrinecarboxaldehyde, please contact our sales team through the website or by phone.
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