Description

4-Mercaptophenylacetic Acid is a versatile sulfur-containing aromatic carboxylic acid, serving as a critical building block in advanced organic synthesis. Its unique structure, featuring both a thiol and a carboxylic acid functional group, makes it an invaluable intermediate for creating complex molecules with tailored properties. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries, where it is used to develop active ingredients, ligands, and functional polymers.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of drug candidates, particularly those targeting enzyme inhibition or requiring specific metal-chelating properties.
• Agrochemical Synthesis: Building block for creating novel herbicides, fungicides, and plant growth regulators that leverage its reactive thiol group.
• Material Science & Polymer Chemistry: Monomer or cross-linking agent for synthesizing specialty polymers, conductive materials, or self-assembled monolayers (SAMs).
• Chemical Research & Development: Versatile reagent for constructing heterocyclic compounds, complex ligands for catalysis, and in medicinal chemistry research.
• Chelating Agent Precursor: Used to develop ligands for metal complexation in catalytic systems or for analytical chemistry applications.
• Bioconjugation & Protein Modification: The thiol group allows for selective conjugation reactions in biochemical and biotechnological applications.

Basic Information

Product Name	4-Mercaptophenylacetic Acid
CAS No.	39161-84-7
Molecular Formula	C8H8O2S
Molecular Weight	168.21 g/mol
Synonyms	(4-Mercaptophenyl)acetic Acid; 4-Thiolphenylacetic Acid; 2-(4-Sulfanylphenyl)acetic Acid; p-Mercaptophenylacetic Acid; 4-SH-Phenylacetic Acid; 2-(4-Mercaptophenyl)acetic Acid; 4-Thiophenolacetic Acid; 4-Mercaptobenzeneacetic Acid
EINECS	Contact for details

Quality Control

Our 4-Mercaptophenylacetic Acid is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent quality for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic and easily oxidized nature, it is recommended to handle the material under an inert atmosphere (e.g., nitrogen) for long-term storage and to minimize exposure to air and moisture during use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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