Description

(S)-1,2-Pentanediol is a high-purity chiral diol, a valuable building block in asymmetric synthesis and specialty chemical manufacturing. Its defined stereochemistry is critical for applications requiring precise molecular interactions, such as in advanced pharmaceuticals and high-performance materials. This compound is essential for R&D chemists and production specialists in the pharmaceutical, agrochemical, and fine chemical industries seeking to develop enantiomerically pure products.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of active pharmaceutical ingredients (APIs), particularly in antiviral and cardiovascular drug candidates.
• Agrochemical Synthesis: Used in the production of enantioselective pesticides and herbicides, where the (S)-enantiomer provides targeted biological activity.
• Asymmetric Catalyst Ligand: Serves as a precursor for chiral ligands in transition metal catalysis, enabling highly selective chemical transformations.
• Fine Chemical Building Block: Employed in the manufacture of specialty polymers, liquid crystals, and advanced materials requiring specific stereochemical properties.
• Cosmetic & Personal Care Ingredient: Functions as a humectant and solvent in high-end skincare formulations, valued for its purity and mildness.
• Flavor & Fragrance Industry: Acts as a chiral intermediate for the synthesis of natural-identical flavor compounds and aroma chemicals.

Basic Information

Product Name	(S)-1,2-Pentanediol
CAS No.	29117-54-2
Molecular Formula	C5H12O2
Molecular Weight	104.15 g/mol
Synonyms	(S)-1,2-Pentanediol; (S)-(+)-1,2-Pentanediol; (2S)-Pentane-1,2-diol; L-1,2-Pentanediol; (S)-Pentane-1,2-diol; (+)-1,2-Pentanediol; (S)-1,2-Dihydroxypentane; 1,2-Pentanediol, (S)-
EINECS	Contact for details

Quality Control

Our (S)-1,2-Pentanediol is manufactured under strict quality management systems. Each batch is analyzed to ensure high enantiomeric excess (e.e.) and chemical purity, meeting the stringent requirements for chiral intermediates. Certificates of Analysis (COA) with detailed chromatographic data (HPLC/GC) for identity, assay, and enantiomeric purity are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under a dry atmosphere to prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Water Content (KF)	≤ 0.5%
Specific Rotation [α]	+10.0° to +12.0° (c=1, H2O)

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