tert-Butyl (R)-2-hydroxybutyrate

CAS 206996-51-2C2H5CH(OH)CO2C(CH3)3Chemical Synthesis

Tech Serve Solutions supplies tert-Butyl (R)-2-hydroxybutyrate (CAS: 206996-51-2), a chiral building block with the molecular formula C2H5CH(OH)CO2C(CH3)3 and a molecular weight of 160.21 g/mol. This ester is crucial in asymmetric synthesis and chemical manufacturing. Its verified optical activity and high optical purity make it a valuable intermediate for creating stereochemically defined molecules, essential in pharmaceutical and fine chemical development.

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tert-Butyl (R)-2-hydroxybutyrate (C2H5CH(OH)CO2C(CH3)3) — chemical structure, CAS 206996-51-2; Chemistry, fine chemical supplied by Tech Serve Solutions

Asymmetric SynthesisChemical SynthesisChiral Building BlocksEstersOrganic Building Blocks

01 /Applications

Chiral Building Block

Utilised as a fundamental stereodefined synthon in organic synthesis. It enables the introduction of specific chirality into target molecules, particularly in the development of pharmaceuticals and complex organic compounds.

Asymmetric Synthesis

Plays a key role in asymmetric synthesis, facilitating the creation of enantiomerically pure compounds. Its defined stereocenter is critical for constructing molecules with desired three-dimensional structures.

Pharmaceutical Intermediates

Serves as a valuable intermediate in the synthesis pathways of various active pharmaceutical ingredients (APIs). Its chiral nature is essential for the efficacy and safety of many drug molecules.

Fine Chemical Manufacturing

Employed in the broader fine chemical industry for synthesising speciality chemicals. Its versatile ester functionality and chiral hydroxyl group allow for diverse chemical transformations.

02 /Properties

Molecular weight	160.21
Linear formula	C2H5CH(OH)CO2C(CH3)3
Assay	98%
Optical activity	[α]20/D +5.1°, c = 2 in carbon tetrachloride
Optical purity	ee: 98% (GLC)
Application	Chiral building block
Melting point	52-54 °C(lit.)

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

Danger

Hazard statements

H318Causes serious eye damage

Precautionary statements

P280Wear protective gloves, clothing and eye/face protection
P305IF IN EYES

Protective equipment	dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK, DE)	3
Hazard codes (EU)	Xi
Risk statements (R)	41
Safety statements (S)	26-39

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

206996-51-2

Beilstein registry

5728525

05 /Quality & supply

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.

06 /Frequently asked questions

What is tert-Butyl (R)-2-hydroxybutyrate used for?

tert-Butyl (R)-2-hydroxybutyrate is primarily used as a chiral building block in asymmetric synthesis and chemical manufacturing, particularly for creating stereochemically defined molecules in the pharmaceutical and fine chemical industries.

What are the CAS number and chemical formula for tert-Butyl (R)-2-hydroxybutyrate?

The CAS number is 206996-51-2 and the chemical formula is C2H5CH(OH)CO2C(CH3)3.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies tert-Butyl (R)-2-hydroxybutyrate with an assay of 98% and optical purity of ee: 98%. This is a technical/research grade material, and TSS does not represent it as USP, BP, or EP grade.

What are the safety and handling precautions for tert-Butyl (R)-2-hydroxybutyrate?

This compound is classified as Danger with hazard statement H318, indicating it causes serious eye damage. Recommended personal protective equipment includes a dust mask type N95, eyecups, and gloves. Handle with care to avoid eye contact.

How is tert-Butyl (R)-2-hydroxybutyrate packaged and shipped?

Tech Serve Solutions packages and exports chemicals according to international safety and transport regulations. Specific packaging details are available upon request, and we ensure compliance for global distribution.

How can I request a sample or a quote for tert-Butyl (R)-2-hydroxybutyrate?

To request a sample or a quote, please contact our sales team via the website or direct email, providing your specific requirements and shipping details.