Ethyl propionate
Ethyl propionate (CAS: 105-37-3) is a clear, colourless ester with a characteristic fruity odour. With a molecular formula of C5H10O2 and a molecular weight of 102.13 g/mol, this compound is a versatile building block in organic synthesis. It finds applications as a flavouring agent and solvent, and is used in the production of various chemical intermediates. Tech Serve Solutions supplies high-purity Ethyl Propionate for research and industrial applications.
- Synonyms
- ethyl propanoatepropionic acid ethyl esterethyl propanoic acidPropanal, diethyl acetalPropionic acid, ethyl ester

Flavour and Fragrance Industry
Ethyl propionate is frequently employed as a flavouring agent, imparting a fruity note to food products and beverages. It is also utilised in the fragrance industry for its pleasant aroma.
Organic Synthesis
As a reactive ester, ethyl propionate serves as a valuable building block in organic synthesis. It is used in the preparation of various pharmaceutical intermediates and fine chemicals.
Solvent Applications
This ester exhibits good solvency properties, making it suitable for use in certain industrial applications, including coatings and inks, where controlled evaporation is required.
| Molecular weight | 102.13 |
|---|---|
| Linear formula | CH3CH2COOC2H5 |
| Assay | ≥99.0% (GC) |
| Grade | puriss. |
| Boiling point | 99 °C(lit.) |
| Density | 0.888 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.384(lit.)n20/D 1.384 |
| Melting point | −73 °C(lit.) |
| Vapour pressure | 40 mmHg (27.2 °C) |
| Vapour density | 3.52 (vs air) |
| Autoignition temp | 887 °F |

Hazard statements
- H225Highly flammable liquid and vapour
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 53 °C / 127.4 °F |
| Transport (UN / ADR) | UN 1195 3 / PGII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11 |
| Safety statements (S) | 16-23-24-29-33 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Expl Lim | 11 %n20/D 1.384 |
|---|
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 Propionate used for?
+
Ethyl Propionate is used as a flavouring agent, in the fragrance industry, as a building block in organic synthesis for preparing intermediates, and as a solvent in certain industrial applications.
What is the CAS number and formula for Ethyl Propionate?
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The CAS number for Ethyl Propionate is 105-37-3 and its linear formula is CH3CH2COOC2H5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethyl Propionate with a purity of ≥99.0% (GC) and a 'puriss.' grade. TSS does not represent this product as USP, BP, or EP grade unless explicitly stated.
What are the primary safety hazards of Ethyl Propionate?
+
Ethyl Propionate is a highly flammable liquid and vapour (H225). It requires careful handling away from ignition sources, and appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection, should be used.
How is Ethyl Propionate packed, shipped, and exported?
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Ethyl Propionate is shipped and exported in compliance with international regulations for hazardous materials, including UN 1195 classification. Packaging is designed to ensure product integrity and safety during transit.
How can I request a sample or quote for Ethyl Propionate?
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To request a sample or a quote for Ethyl Propionate, please contact the TSS sales team via our website or direct email, providing your specific requirements and delivery location.
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