Ethyl benzoylformate
Ethyl benzoylformate (CAS: 1603-79-8) is an organic compound with the molecular formula C<sub>6</sub>H<sub>5</sub>COCO<sub>2</sub>C<sub>2</sub>H<sub>5</sub> and a molecular weight of 178.18 g/mol. As a useful intermediate in organic synthesis, it features a benzoyl group adjacent to an ethoxycarbonyl group. It is primarily employed as a building block in the synthesis of more complex molecules, particularly within the pharmaceutical and fine chemical sectors.
- IUPAC
- Ethyl phenylglyoxylate
- Synonyms
- Ethyl phenylglyoxylate

Intermediate in Heterocyclic Synthesis
Ethyl benzoylformate serves as a precursor in the synthesis of various heterocyclic compounds. It has been specifically utilised in the preparation of 1,5-dihydro-5-deazaflavin derivatives, demonstrating its utility in constructing complex ring systems.
Organic Synthesis Building Block
This compound functions as a versatile building block in general organic synthesis. Its diketone-like structure allows for a range of chemical transformations, making it valuable for creating novel carbon skeletons.
Carbonyl Compound Chemistry
As a carbonyl compound, ethyl benzoylformate participates in reactions characteristic of ketones and esters. This reactivity profile makes it a useful reagent for introducing specific functional groups into target molecules.
| Molecular weight | 178.18 |
|---|---|
| Linear formula | C6H5COCO2C2H5 |
| Assay | 95% |
| Boiling point | 138-139 °C/18 mmHg(lit.) |
| Density | 1.122 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.516(lit.) |
| Application | Ethyl benzoylformate has been used in preparation of 1,5-dihydro-5-deazaflavin derivatives possessing a chiral substituent at N(3) position1. |
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Flash point | >113 °C / >235.4 °F |
| Water hazard class (WGK, DE) | 3 |
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 Ethyl benzoylformate used for?
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Ethyl benzoylformate is primarily used as a building block in organic synthesis, including the preparation of 1,5-dihydro-5-deazaflavin derivatives.
What is the CAS number and chemical formula for Ethyl benzoylformate?
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The CAS number for Ethyl benzoylformate is 1603-79-8, and its linear chemical formula is C<sub>6</sub>H<sub>5</sub>COCO<sub>2</sub>C<sub>2</sub>H<sub>5</sub>.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethyl benzoylformate with a minimum assay of 95%. This product is intended for laboratory and industrial research; TSS does not represent it as USP, BP, EP, or any other pharmacopoeial grade.
How should Ethyl benzoylformate be handled safely?
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Ethyl benzoylformate requires appropriate safety measures during handling. Recommended personal protective equipment includes eyeshields and gloves. It has a high flash point (>113 °C / >235.4 °F), indicating it is not highly flammable under normal conditions.
Is Ethyl benzoylformate a controlled substance?
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Based on the provided data, Ethyl benzoylformate (CAS: 1603-79-8) is not indicated as a controlled or scheduled substance.
How is Ethyl benzoylformate packed, shipped, and exported?
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Ethyl benzoylformate is carefully packed to ensure integrity during transit. As a global supplier, Tech Serve Solutions professionally handles the export of this chemical, adhering to all relevant shipping regulations.
How can I request a quote or sample of Ethyl benzoylformate?
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To request a quote or sample of Ethyl benzoylformate, please contact our sales team directly through the website or by phone. We are happy to assist with your specific requirements.
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