Description

1,4-Butanediol, 2-(2-Hydroxyethoxy)-, (S)- is a high-purity, chiral chemical intermediate of significant importance in advanced organic synthesis. Its unique structure, featuring both hydroxyl and ether functionalities, makes it a valuable building block for creating complex, optically active molecules. This product is essential for research and development in the pharmaceutical, agrochemical, and specialty polymer industries, where precise stereochemistry is critical for performance.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of active pharmaceutical ingredients (APIs), particularly in antiviral, cardiovascular, and central nervous system (CNS) drugs.
• Agrochemical Synthesis: Used in the production of advanced, enantiomerically pure herbicides, fungicides, and plant growth regulators.
• Specialty Polymer Monomer: Serves as a monomer or chain extender for producing high-performance, biodegradable polyesters and polyurethanes with tailored properties.
• Liquid Crystal & OLED Materials: Acts as a precursor in the synthesis of chiral dopants and charge-transport materials for display and optoelectronic applications.
• Asymmetric Catalyst Ligand: Utilized in the development of novel chiral ligands for transition metal catalysis in fine chemical manufacturing.
• Cosmetic & Personal Care Ingredients: A potential intermediate for synthesizing specialty humectants and emollients with specific sensory profiles.

Basic Information

Product Name	1,4-Butanediol, 2-(2-Hydroxyethoxy)-, (S)-
CAS No.	68733-01-7
Molecular Formula	C8H18O4
Molecular Weight	178.23 g/mol
Synonyms	(S)-2-(2-Hydroxyethoxy)-1,4-butanediol; (S)-1,4-Butanediol, 2-(2-hydroxyethoxy)-; (S)-3-Oxa-1,5-octanediol; (S)-2-(2-Hydroxyethoxy)butane-1,4-diol; (S)-HEDB; (S)-2-(2-Hydroxyethoxy)butanediol; (S)-Ethylene glycol mono(2,3-dihydroxybutyl) ether; (S)-1,4-Bis(2-hydroxyethoxy)butan-2-ol (isomer)
EINECS	Contact for details

Quality Control

Our (S)-2-(2-Hydroxyethoxy)-1,4-butanediol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity analysis by HPLC, to ensure compliance with exacting standards for advanced synthetic applications. Certificates of Analysis (COA) detailing identity, assay, enantiomeric excess, and impurity profiles are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect quality.

Specification

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

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