Description

4-Mercapto-Phenyl-Acetic Acid Ethyl Ester is a versatile sulfur-containing aromatic ester, a key intermediate in advanced organic synthesis. Its value lies in the reactive thiol (-SH) and ester functional groups, enabling precise chemical modifications for high-value applications. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries developing novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: A critical building block for synthesizing active pharmaceutical ingredients (APIs), particularly in drug discovery programs targeting neurological and metabolic disorders.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where the thiol group facilitates the creation of sulfur-bridged bioactive molecules.
• Ligand and Catalyst Precursor: Serves as a precursor for synthesizing specialized ligands in coordination chemistry and catalysts for asymmetric synthesis.
• Polymer Modification: Employed to introduce thiol functionality into polymer chains, enabling cross-linking, adhesion promotion, and the creation of specialty resins.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D for exploring new organic reactions and synthesizing complex heterocyclic compounds.
• Flavor & Fragrance Intermediate: Used in the controlled synthesis of sulfur-containing aroma chemicals for high-end fragrance and flavor formulations.

Basic Information

Product Name	4-Mercapto-Phenyl-Acetic Acid Ethyl Ester
CAS No.	55863-28-0
Molecular Formula	C10H12O2S
Molecular Weight	196.26 g/mol
Synonyms	Ethyl (4-Mercaptophenyl)acetate; 4-Sulfanylphenylacetic Acid Ethyl Ester; Ethyl 4-Mercaptophenylacetate; p-Mercaptophenylacetic Acid Ethyl Ester; 2-(4-Sulfanylphenyl)acetic Acid Ethyl Ester; 2-(4-Mercaptophenyl)acetic Acid Ethyl Ester; Ethyl 2-(4-Sulfanylphenyl)acetate; 55863-28-0 (CAS)
EINECS	Contact for details

Quality Control

Our 4-Mercapto-Phenyl-Acetic Acid Ethyl Ester is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, GC for residual solvents, and IR/NMR for structural confirmation, to ensure it meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at 15-25°C under an inert atmosphere (e.g., nitrogen or argon) due to its easily oxidized nature. Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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