α-Bromo-α-methyl-γ-butyrolactone
α-Bromo-α-methyl-γ-butyrolactone (CAS 33693-67-3, C5H7BrO2) is a chemical intermediate with a molecular weight of 179.01 g/mol. This brominated lactone serves as a versatile building block in organic synthesis. Its structure lends itself to various chemical transformations, making it valuable in the development of complex molecules for research and industrial applications. It is supplied by Tech Serve Solutions for laboratory and manufacturing purposes.

Organic Synthesis Building Block
This compound functions as a key intermediate in organic chemistry. Its functional groups allow for diverse reactions, facilitating the construction of more complex molecular architectures. It is particularly useful in academic research and fine chemical synthesis.
Pharmaceutical Intermediate Development
The lactone and bromo-methyl functionalities make α-Bromo-α-methyl-γ-butyrolactone a potential precursor in the synthesis of pharmaceutical agents. It can be employed in multi-step synthetic routes towards novel drug candidates.
Materials Science Research
As a reactive organic molecule, it may find applications in the development of novel polymers or functional materials. Its incorporation into larger structures could impart specific chemical properties.
| Molecular weight | 179.01 |
|---|---|
| Empirical formula | C5H7BrO2 |
| Assay | 96% |
| Boiling point | 112 °C/13 mmHg(lit.) |
| Density | 1.581 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.494(lit.) |

Hazard statements
- 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, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 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 α-Bromo-α-methyl-γ-butyrolactone used for?
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α-Bromo-α-methyl-γ-butyrolactone (CAS 33693-67-3) is primarily used as a building block in organic synthesis and as an intermediate in the development of complex molecules, potentially including pharmaceuticals and novel materials.
What is the CAS number and chemical formula for α-Bromo-α-methyl-γ-butyrolactone?
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The CAS number for α-Bromo-α-methyl-γ-butyrolactone is 33693-67-3, and its empirical formula is C5H7BrO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies α-Bromo-α-methyl-γ-butyrolactone with an assay of 96%. This product is intended for laboratory and research use and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should α-Bromo-α-methyl-γ-butyrolactone be handled safely?
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Handle with appropriate personal protective equipment, including safety glasses and gloves. This compound is classified as an irritant to skin, eyes, and the respiratory tract (H315, H319, H335). Ensure adequate ventilation and avoid inhalation of vapours or dust.
Is α-Bromo-α-methyl-γ-butyrolactone a controlled substance?
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The provided data does not indicate that α-Bromo-α-methyl-γ-butyrolactone (CAS 33693-67-3) is a controlled substance.
How is this chemical packed and shipped?
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Tech Serve Solutions securely packs and exports chemicals globally, adhering to all relevant transport regulations. Specific packaging details are available upon request.
How can I request a sample or quote for α-Bromo-α-methyl-γ-butyrolactone?
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To request a sample or a quotation for α-Bromo-α-methyl-γ-butyrolactone, please contact our sales department through the website or by phone.
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