Ethyl α-hydroxyisobutyrate
Ethyl α-hydroxyisobutyrate (CAS 80-55-7), with the linear formula (CH₃)₂C(OH)COOC₂H₅, is a chemical compound with a molecular weight of 132.16 g/mol. This ester functions as a valuable building block in organic synthesis. Its properties make it suitable for applications within chemical research and development, particularly where ester and carbonyl functionalities are required.
- IUPAC
- Ethyl 2-hydroxy-2-methylpropionate
- Synonyms
- Ethyl 2-hydroxy-2-methylpropionate

Organic Synthesis Intermediate
Utilised as a key intermediate in the construction of more complex organic molecules. Its functional groups allow for diverse synthetic transformations.
Research and Development
Employed in laboratory settings for exploring new chemical pathways and developing novel compounds. Its structure is useful for medicinal chemistry and material science research.
Ester Chemistry
Serves as a model compound or reagent in studies involving esterification, transesterification, and other ester-related reactions due to its hydroxyl and ester functionalities.
| Molecular weight | 132.16 |
|---|---|
| Linear formula | (CH3)2C(OH)COOC2H5 |
| Assay | 98% |
| Boiling point | 150 °C(lit.) |
| Density | 0.965 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.408(lit.) |


Hazard statements
- H226Flammable liquid and vapour
- 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 | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 41 °C / 105.8 °F |
| Transport (UN / ADR) | UN 3272 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 10-36/37/38 |
| Safety statements (S) | 26-36 |
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 α-hydroxyisobutyrate used for?
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Ethyl α-hydroxyisobutyrate is primarily used as a building block in organic synthesis and in research and development for creating novel compounds.
What is the CAS number and formula for Ethyl α-hydroxyisobutyrate?
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The CAS number is 80-55-7 and the linear formula is (CH₃)₂C(OH)COOC₂H₅.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethyl α-hydroxyisobutyrate with an assay of 98%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeial grades unless explicitly stated in the product data.
How should Ethyl α-hydroxyisobutyrate be handled safely?
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Ethyl α-hydroxyisobutyrate is a flammable liquid and vapour (H226), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, in a well-ventilated area.
How is Ethyl α-hydroxyisobutyrate packed and exported?
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Products are packed according to international shipping regulations and can be exported globally by Tech Serve Solutions. Specific packaging details will be confirmed upon order.
How can I request a sample or quote for Ethyl α-hydroxyisobutyrate?
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To request a sample or quote, please contact the Tech Serve Solutions sales team through the website or by phone, providing your specific requirements.
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