Description

R(-)/S(+)-1,2-Propanediol is a high-purity chiral isomer of propylene glycol, a versatile diol with distinct stereochemical properties. This compound matters for applications requiring specific enantiomeric purity, such as in advanced pharmaceutical synthesis and specialty chemical manufacturing. Industries that need it include pharmaceutical R&D, fine chemical production, and advanced material science, where the precise stereochemistry is critical for product performance and regulatory compliance.

Application

• Pharmaceutical Chiral Intermediate: As a key building block for synthesizing enantiomerically pure active pharmaceutical ingredients (APIs).
• Fine Chemical Synthesis: Used in the production of specialty chemicals, flavors, and fragrances where stereoselectivity is required.
• Polymer Science: Serves as a monomer or co-monomer for creating polymers with specific tacticity and physical properties.
• Analytical Chemistry: Employed as a chiral resolving agent or a standard in chromatographic methods for enantiomer separation.
• Biocatalysis & Enzyme Studies: Utilized as a substrate or co-solvent in stereospecific enzymatic reactions and research.
• Advanced Material Precursor: Acts as a starting material for liquid crystals, specialty surfactants, and other performance materials.

Basic Information

Product Name	R(-)/S(+)-1,2-Propanediol
CAS No.	63625-56-9
Molecular Formula	C3H8O2
Molecular Weight	76.09 g/mol
Synonyms	(R)-(-)-1,2-Propanediol; (S)-(+)-1,2-Propanediol; (R)-Propylene Glycol; (S)-Propylene Glycol; (R)-1,2-Dihydroxypropane; (S)-1,2-Dihydroxypropane; Chiral Propylene Glycol; Enantiomeric Propylene Glycol
EINECS	Contact for details

Quality Control

Our R(-)/S(+)-1,2-Propanediol is produced under strict quality management systems to ensure high enantiomeric purity and chemical consistency. Each batch is characterized by advanced analytical techniques including chiral HPLC and optical rotation measurement. Certificates of Analysis (COA) detailing enantiomeric excess (ee), chemical purity, and identity are available upon request.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Enantiomeric Excess (ee)	≥ 99.0% (for specified isomer)
Specific Optical Rotation	Complies with specified isomer range
Water Content (KF)	≤ 0.5%

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