Description

(S)-Styrene Oxide is a high-value chiral epoxide building block essential for the synthesis of enantiomerically pure compounds. This optically active intermediate is critical for achieving specific stereochemistry in advanced pharmaceutical and fine chemical manufacturing. It is primarily sought after by research institutions and industrial producers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing active ingredients and complex molecules.

Application

• Pharmaceutical Intermediate: Key chiral synthon for the production of enantiopure drugs, including β-blockers, anti-inflammatory agents, and other bioactive molecules.
• Agrochemical Synthesis: Used in the manufacture of chiral pesticides, herbicides, and plant growth regulators where specific stereochemistry impacts biological activity.
• Fine Chemical Production: Serves as a versatile precursor in asymmetric synthesis for creating flavors, fragrances, and advanced material monomers.
• Asymmetric Catalysis Research: A valuable substrate in academic and industrial R&D for developing and testing new chiral catalysts and synthetic methodologies.
• Polymer Modification: Employed to introduce chiral centers or epoxy functionalities into polymer chains for specialized material properties.

Basic Information

Product Name	(S)-Styrene Oxide
CAS No.	20780-54-5
Molecular Formula	C8H8O
Molecular Weight	120.15 g/mol
Synonyms	(S)-(-)-Styrene Oxide; (S)-Phenyloxirane; (S)-1,2-Epoxyethylbenzene; (S)-Phenylethylene Oxide; (S)-2-Phenyloxirane; (S)-Styrene 7,8-oxide; L-Styrene Oxide; (-)-(S)-Styrene Oxide
EINECS	244-060-2

Quality Control

Our (S)-Styrene Oxide is manufactured under strict quality management systems to ensure high enantiomeric purity and chemical consistency. Each batch is characterized by chiral HPLC, GC, and NMR to verify identity, purity, and optical rotation. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment, ensuring compliance with research and cGMP-grade requirements for advanced synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and potential racemization or polymerization.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0% ee
Optical Rotation [α]20/D	-30° to -35° (c=1 in CHCl3)
Water Content (KF)	≤ 0.5%

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