(2S,3S)-(+)-2,3-Butanediol
(2S,3S)-(+)-2,3-Butanediol (CAS: 19132-06-0) is a chiral diol with a molecular weight of 90.12 g/mol. This compound is a valuable building block in asymmetric synthesis, finding utility in the creation of complex organic molecules and chiral intermediates. Its specific stereochemistry makes it particularly useful for stereoselective reactions in organic synthesis and chemical research.
- Synonyms
- 19132-06-0, CH3CH(OH)CH(OH)CH3

Chiral Building Block
Utilised in organic synthesis for constructing enantiomerically pure compounds. Its defined stereocentres allow for precise control in the development of complex molecular architectures.
Asymmetric Synthesis
Serves as a chiral auxiliary or starting material in asymmetric synthesis pathways. It facilitates the stereoselective formation of new chiral centres.
Synthesis of Pharmaceutical Intermediates
Employed in the multi-step synthesis of advanced pharmaceutical intermediates where specific stereochemistry is critical for biological activity.
Research and Development
A key reagent in academic and industrial research laboratories for exploring novel synthetic methodologies and developing new chiral compounds.
| Molecular weight | 90.12 |
|---|---|
| Linear formula | CH3CH(OH)CH(OH)CH3 |
| Assay | 97% |
| Boiling point | 179-182 °C(lit.) |
| Density | 0.987 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.433(lit.) |
| Optical activity | [α]20/D +13°, neat |
| Optical purity | ee: 99% (GLC) |
| Protective equipment | Eyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | 85 °C / 185 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| 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 (2S,3S)-(+)-2,3-Butanediol used for?
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(2S,3S)-(+)-2,3-Butanediol is primarily used as a chiral building block in asymmetric synthesis and for the preparation of complex organic molecules and pharmaceutical intermediates.
What are the CAS number and formula for (2S,3S)-(+)-2,3-Butanediol?
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The CAS number is 19132-06-0, and its linear formula is CH3CH(OH)CH(OH)CH3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (2S,3S)-(+)-2,3-Butanediol with an assay of 97% and an optical purity (ee) of 99%. This product is supplied for research and development purposes and is not represented as USP, BP, EP, nutraceutical, or food grade.
What are the primary hazards associated with handling (2S,3S)-(+)-2,3-Butanediol?
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(2S,3S)-(+)-2,3-Butanediol is a combustible liquid. Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, should be used. It is classified with UN number NA 1993 and Packing Group III.
How is (2S,3S)-(+)-2,3-Butanediol packed, shipped, and exported?
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Tech Serve Solutions packs, ships, and exports (2S,3S)-(+)-2,3-Butanediol according to international regulations for hazardous materials, ensuring safe and compliant delivery worldwide.
How can I request a sample or a quote for (2S,3S)-(+)-2,3-Butanediol?
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To request a sample or a quote for (2S,3S)-(+)-2,3-Butanediol, please contact our sales team through the website or by phone.
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