4-Oxazolecarboxaldehyde
4-Oxazolecarboxaldehyde (CAS: 118994-84-6), a key organic building block with the molecular formula C4H3NO2 and a molecular weight of 97.07 g/mol, is a vital intermediate in chemical synthesis. This heterocyclic compound, featuring an oxazole ring substituted with an aldehyde group, is crucial for constructing more complex molecules. It is commonly employed in the development of novel pharmaceuticals and agrochemicals, serving as a versatile precursor in various organic transformations.
- IUPAC
- Oxazole-4-carbaldehyde

Pharmaceutical Intermediate
Serves as a critical building block in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly those incorporating the oxazole moiety.
Agrochemical Development
Used in the research and development of new pesticides, herbicides, and fungicides, leveraging its heterocyclic structure for bioactivity.
Organic Synthesis Reagent
A versatile aldehyde functionality allows for diverse reactions such as Wittig, Grignard, and reductive amination, facilitating the creation of complex organic molecules.
Material Science Research
Potential applications in the synthesis of functional materials and polymers where the oxazole ring can impart specific electronic or structural properties.
| Molecular weight | 97.07 |
|---|---|
| Empirical formula | C4H3NO2 |
| Assay | 97% |
| Melting point | 57-61 °C |

Hazard statements
- H302Harmful if swallowed
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36-43 |
| Safety statements (S) | 26-36/37 |
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-Oxazolecarboxaldehyde used for?
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4-Oxazolecarboxaldehyde is primarily used as a building block in pharmaceutical and agrochemical research and development, as well as in general organic synthesis for creating complex molecules.
What is the CAS number and chemical formula for 4-Oxazolecarboxaldehyde?
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The CAS number is 118994-84-6 and the chemical formula is C4H3NO2.
What grade and purity does Tech Serve Solutions supply for 4-Oxazolecarboxaldehyde?
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Tech Serve Solutions supplies 4-Oxazolecarboxaldehyde with a minimum purity of 97%. This product is suitable for research and general chemical synthesis. We do not represent it as USP, BP, or EP grade.
What are the main hazards associated with 4-Oxazolecarboxaldehyde?
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4-Oxazolecarboxaldehyde is classified with GHS07, indicating a Warning signal word. It is harmful if swallowed (H302), may cause an allergic skin reaction (H317), and causes serious eye irritation (H319). Appropriate personal protective equipment including a dust mask (N95), eyeshields, face shields, and gloves should be used.
Is 4-Oxazolecarboxaldehyde a controlled substance?
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The provided data does not indicate that 4-Oxazolecarboxaldehyde is a controlled substance.
How can I request a sample or quote for 4-Oxazolecarboxaldehyde?
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To request a sample or a quote for 4-Oxazolecarboxaldehyde, please contact our sales department through the website or by calling us directly.
How is 4-Oxazolecarboxaldehyde exported and shipped?
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4-Oxazolecarboxaldehyde is exported and shipped according to international regulations for chemical transport, ensuring safe and compliant delivery worldwide.
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