Description

4-Methylsulfonyl-2-Aminophenol is a high-purity organic intermediate featuring both an amine and a sulfone functional group on a phenolic ring. This unique structure makes it a valuable building block for synthesizing complex molecules, particularly in the pharmaceutical and agrochemical sectors. It is primarily sought after by R&D chemists and process development teams for creating active pharmaceutical ingredients (APIs), dyes, and advanced materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of various drug candidates and active pharmaceutical ingredients (APIs), particularly those requiring a sulfonyl-substituted aniline moiety.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents where its structural features contribute to biological activity.
• Dye and Pigment Manufacturing: Serves as an intermediate for producing azo dyes and other complex colorants due to its reactive amine and hydroxyl groups.
• Research & Development: Employed in academic and industrial labs for chemical research, process development, and the creation of novel organic compounds.
• Polymer Additive: Can be utilized in the synthesis of specialty polymers and as a modifier to impart specific chemical properties.

Basic Information

Product Name	4-Methylsulfonyl-2-Aminophenol
CAS No.	98-60-3
Molecular Formula	C7H9NO3S
Molecular Weight	187.22 g/mol
Synonyms	2-Amino-4-(methylsulfonyl)phenol; 4-(Methylsulfonyl)-2-aminophenol; 2-Hydroxy-5-(methylsulfonyl)aniline; Phenol, 2-amino-4-(methylsulfonyl)-; 5-Amino-2-hydroxybenzenesulfonic acid methyl ester; 98-60-3; 4-MESAP
EINECS	202-687-4

Quality Control

Our 4-Methylsulfonyl-2-Aminophenol is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for use in sensitive synthesis applications. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This compound is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). Keep away from heat, sparks, and open flame.

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	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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