Description

4-Amino-2-Methoxy-5-Mercaptobenzoic Acid is a multifunctional benzoic acid derivative featuring amino, methoxy, and thiol groups, making it a versatile building block for advanced chemical synthesis. This compound is valued for its role as a key intermediate in the development of pharmaceuticals, agrochemicals, and specialty dyes. Industries such as pharmaceutical R&D, fine chemical manufacturing, and material science utilize this chemical for creating complex molecules with specific biological or functional activities.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds targeting specific receptors or enzymes.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators, leveraging its reactive thiol and amino groups.
• Dye and Pigment Manufacturing: Serves as a key intermediate for producing azo dyes and other complex colorants for textiles and industrial applications.
• Research & Development: Employed in academic and industrial labs for medicinal chemistry, chemical biology, and material science research.
• Fine Chemical Production: Acts as a building block for synthesizing complex organic molecules, ligands, and catalysts used in various chemical processes.
• Polymer Modification: The thiol group can be used for thiol-ene click chemistry to functionalize polymers or create cross-linked networks.

Basic Information

Product Name	4-Amino-2-Methoxy-5-Mercaptobenzoic Acid
CAS No.	59168-57-9
Molecular Formula	C8H9NO3S
Molecular Weight	199.23 g/mol
Synonyms	5-Mercapto-2-methoxy-4-aminobenzoic Acid; 4-Amino-5-mercapto-2-methoxybenzoic Acid; 2-Methoxy-4-amino-5-mercaptobenzoic Acid; Benzoic acid, 4-amino-2-methoxy-5-mercapto-; 5-Thiol-2-methoxy-4-aminobenzoic Acid
EINECS	Contact for details

Quality Control

Our 4-Amino-2-Methoxy-5-Mercaptobenzoic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing specifications such as assay, impurity profile, and physical characteristics. We are committed to meeting the stringent requirements of our global customers in research and regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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