Description

Benzenepropanoic Acid, 4-Carboxy-, -α--Methyl Ester (9Ci) is a specialized aromatic ester derivative with significant utility as a key synthetic intermediate. This compound matters for its role in constructing complex molecular architectures, particularly in the development of active pharmaceutical ingredients (APIs) and advanced organic materials. Industries requiring high-purity chemical building blocks, such as pharmaceutical R&D, agrochemical synthesis, and fine chemical manufacturing, are the primary users of this material.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of advanced herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and other performance chemicals requiring specific aromatic frameworks.
• Material Science Research: Employed in the development of specialty polymers, liquid crystals, and organic electronic materials.
• Academic & Industrial R&D: A valuable reagent for methodological development and exploratory organic synthesis in laboratory settings.

Basic Information

Product Name	Benzenepropanoic Acid, 4-Carboxy-, -α--Methyl Ester (9Ci)
CAS No.	179625-38-8
Molecular Formula	C12H12O4
Molecular Weight	220.22 g/mol
Synonyms	4-Carboxy-α-methyl benzenepropanoic acid methyl ester; Methyl 4-carboxy-α-methylbenzenepropanoate; 2-(4-Carboxyphenyl)propanoic acid methyl ester; 4-Carboxy-α-methylbenzenepropanoic acid methyl ester; (4-Carboxyphenyl)propanoic acid methyl ester derivative; Aromatic diester intermediate; CAS 179625-38-8
EINECS	Contact for details

Quality Control

Our Benzenepropanoic Acid, 4-Carboxy-, -α--Methyl Ester (9Ci) is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The container should be kept tightly sealed when not in use to prevent contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Any single impurity	≤ 0.5%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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