Description

4-(Ethylsulfonyl)Benzenepropanoic Acid is a specialized organic building block featuring a benzenepropanoic acid core functionalized with an ethylsulfonyl group. This compound matters as a versatile intermediate for synthesizing more complex molecules, particularly in pharmaceutical and advanced material research. It is needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for creating novel active ingredients and functional materials. The compound is supplied under strict quality control to ensure batch-to-batch consistency for critical synthetic applications.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly those targeting inflammatory or metabolic pathways.
• Agrochemical Research: Used in developing new active ingredients for crop protection products, leveraging its sulfonyl moiety.
• Liquid Crystal & OLED Material Synthesis: Serves as a precursor for creating advanced functional materials used in displays and electronics.
• Polymer Modification: Employed to introduce sulfone and carboxylic acid functionalities into polymer chains to alter physical properties.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying biological processes.
• Custom Synthesis & Contract Manufacturing: A critical starting material for custom synthesis projects requiring specific aromatic sulfone carboxylic acid structures.

Basic Information

Product Name	4-(Ethylsulfonyl)Benzenepropanoic Acid
CAS No.	1152497-21-6
Molecular Formula	C11H14O4S
Molecular Weight	242.29 g/mol
Synonyms	3-[4-(Ethylsulfonyl)phenyl]propanoic acid; 4-(Ethylsulfonyl)benzenepropionic Acid; Benzenepropanoic acid, 4-(ethylsulfonyl)-; p-(Ethylsulfonyl)hydrocinnamic Acid; 4-(Ethanesulfonyl)benzenepropanoic Acid; 1152497-21-6; 4-ESBPA
EINECS	Contact for details

Quality Control

Our 4-(Ethylsulfonyl)Benzenepropanoic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and tests for residual solvents and heavy metals. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment to ensure full traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and heat sources. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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