Description

(S)-Butyl 2-Hydroxybutanoate is a chiral ester of significant interest in fine chemical synthesis and pharmaceutical manufacturing. This compound serves as a valuable chiral building block and intermediate, enabling the production of enantiomerically pure substances. It is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for the development of active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the asymmetric synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting the central nervous system and metabolic disorders.
• Agrochemical Synthesis: Used in the production of enantiomerically pure herbicides, fungicides, and plant growth regulators where specific stereochemistry is crucial for bioactivity.
• Flavor and Fragrance Ingredient: Acts as a precursor for the synthesis of chiral lactones and esters that contribute to complex flavor profiles and aromatic compounds.
• Liquid Crystal and Polymer Chemistry: Serves as a monomer or chiral dopant in the synthesis of advanced polymeric materials and liquid crystal displays (LCDs).
• Asymmetric Catalysis Research: Employed as a standard substrate or ligand precursor in academic and industrial research for developing new catalytic methodologies.
• Chemical Reference Standard: Used as a high-purity standard for analytical method development, calibration, and quality control in chiral separation techniques like HPLC and GC.

Basic Information

Product Name	(S)-Butyl 2-Hydroxybutanoate
CAS No.	132513-51-0
Molecular Formula	C8H16O3
Molecular Weight	160.21 g/mol
Synonyms	(S)-2-Hydroxybutyric Acid Butyl Ester; (S)-Butyl 2-Hydroxybutyrate; (S)-Butyl α-Hydroxybutyrate; (S)-Butyl O-Hydroxybutyrate; L-Butyl 2-Hydroxybutanoate; (2S)-Butyl 2-Hydroxybutanoate; Butyl (S)-2-Hydroxybutanoate
EINECS	Contact for details

Quality Control

Our (S)-Butyl 2-Hydroxybutanoate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chiral purity assessment by HPLC, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) detailing identity, purity, enantiomeric excess, and impurity profiles are provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. For long-term storage under an inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Specific Rotation	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.