Description

(S)-4-Chloro-α-Methylbenzyl Alcohol CAS NO 99528-42-4 is a high-purity chiral intermediate of significant importance in asymmetric synthesis. Its value lies in its role as a key building block for the production of enantiomerically pure pharmaceuticals and agrochemicals. This compound is primarily needed by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and fine chemical sectors for developing active ingredients and advanced materials.

Application

• As a crucial chiral synthon in the asymmetric synthesis of pharmaceutical active ingredients.
• Intermediate for the production of enantiomerically pure agrochemicals, such as certain herbicides and fungicides.
• Building block in the research and development of novel ligands for asymmetric catalysis.
• Starting material for the synthesis of liquid crystals and other advanced organic materials.
• Key intermediate in the preparation of specialty fragrances and flavors requiring specific stereochemistry.
• Used in academic and industrial research for method development in stereoselective transformations.

Basic Information

Product Name	(S)-4-Chloro-α-Methylbenzyl Alcohol
CAS No.	99528-42-4
Molecular Formula	C8H9ClO
Molecular Weight	156.61 g/mol
Synonyms	(S)-1-(4-Chlorophenyl)ethanol; (S)-α-Methyl-4-chlorobenzyl alcohol; (S)-4-Chloro-α-methylbenzyl alcohol; (S)-p-Chloro-α-methylbenzyl alcohol; (S)-1-(4-Chlorophenyl)ethyl alcohol; (S)-4-Chlorophenyl methyl carbinol; (S)-HMPC; (S)-1-(4'-Chlorophenyl)ethanol
EINECS	Contact for details

Quality Control

Our (S)-4-Chloro-α-Methylbenzyl Alcohol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity assessment by HPLC, to ensure it meets the high standards required for pharmaceutical and fine chemical applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, enantiomeric excess, and impurity profiles is 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 (typically 15-25°C). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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