Description

Benzenepropanoic Acid, -Ba-,4-Dimethyl-, 1-Methylethyl Ester, (-Ba-R)- (9Ci) is a high-purity, optically active ester derivative of benzenepropanoic acid, valued for its role as a critical chiral intermediate in advanced organic synthesis. Its defined stereochemistry and molecular structure make it essential for constructing complex molecules with high enantiomeric purity. This compound is primarily needed by research and development laboratories, as well as production facilities in the pharmaceutical and fine chemical industries, where precise stereocontrol is paramount for developing active pharmaceutical ingredients (APIs) and specialty chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key chiral building block in the synthesis of novel therapeutic agents and active pharmaceutical ingredients (APIs).
• Asymmetric Synthesis: Utilized as a starting material or reagent in catalytic asymmetric reactions to introduce specific stereocenters.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, flavors, and fragrances requiring high enantiopurity.
• Academic & Industrial Research: Used in method development and exploratory chemistry for studying structure-activity relationships (SAR).
• Ligand and Catalyst Development: Acts as a precursor for synthesizing chiral ligands and organocatalysts.

Basic Information

Product Name	Benzenepropanoic Acid, -Ba-,4-Dimethyl-, 1-Methylethyl Ester, (-Ba-R)- (9Ci)
CAS No.	338461-62-4
Molecular Formula	C14H20O2
Molecular Weight	220.31 g/mol
Synonyms	(-)-(R)-3-(4-Methylphenyl)butanoic Acid Isopropyl Ester; (R)-Isopropyl 3-(p-tolyl)butyrate; (R)-1-Methylethyl 3-(4-methylphenyl)butanoate; (-)-Isopropyl (R)-3-(4-methylphenyl)butyrate; Benzenepropanoic acid, β,4-dimethyl-, 1-methylethyl ester, (βR)- (9CI); (R)-3-(4-Methylphenyl)butyric Acid Isopropyl Ester
EINECS	Contact for details

Quality Control

Our Benzenepropanoic Acid, -Ba-,4-Dimethyl-, 1-Methylethyl Ester, (-Ba-R)- (9Ci) is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity assessment by HPLC, to ensure it meets exacting standards for research and synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and enantiomeric excess is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

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

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