tert-Butyl propionate
tert-Butyl propionate (CAS: 20487-40-5), a chemical compound with the linear formula CH3CH2COOC(CH3)3 and a molecular weight of 130.18 g/mol, is a valuable organic ester. It serves as a versatile building block and intermediate in various chemical synthesis applications, particularly within organic chemistry. Its ester functionality and tert-butyl group make it useful for introducing specific structural motifs in the development of novel compounds.

Organic Synthesis Intermediate
Tert-butyl propionate is employed as a key intermediate in the synthesis of more complex organic molecules. Its structure allows for targeted reactions in multi-step synthetic pathways.
Building Block in Chemical Research
As an organic building block, this ester is utilised in research laboratories for the development and discovery of new chemical entities. It is particularly useful in the C6 to C7 carbon chain range.
Ester Chemistry Applications
The compound's identity as an ester makes it relevant in studies and applications involving ester functionalities, contributing to the broader field of carbonyl compound chemistry.
| Molecular weight | 130.18 |
|---|---|
| Linear formula | CH3CH2COOC(CH3)3 |
| Assay | ≥98.5% (GC) |
| Boiling point | 118-118.5 °C(lit.) |
| Density | 0.865 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.393(lit.)n20/D 1.393 |

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 | 21 °C / 69.8 °F |
| Transport (UN / ADR) | UN 3272 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
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 tert-Butyl propionate used for?
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Tert-butyl propionate is primarily used as an intermediate and building block in organic synthesis and chemical research.
What is the CAS number and chemical formula for tert-Butyl propionate?
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The CAS number is 20487-40-5, and its linear formula is CH3CH2COOC(CH3)3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies tert-Butyl propionate with an assay of ≥98.5% (GC). We do not represent this product as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated.
What are the main hazards associated with tert-Butyl propionate?
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Tert-butyl propionate is a flammable liquid and vapour (H225). It requires careful handling due to its flammability, with a flash point of 21 °C (69.8 °F).
How is tert-Butyl propionate packed and exported?
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Tech Serve Solutions, as a specialist global supplier and exporter, ensures appropriate packaging and adherence to international regulations for the safe shipment of chemicals like tert-Butyl propionate.
How can I request a quote or sample of tert-Butyl propionate?
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To request a quote or sample, please contact our sales team through the designated channels on the Tech Serve Solutions website.
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