Description

4-(Ethylsulphonyl)-2-Nitrophenol is a specialized organic intermediate characterized by its distinct nitrophenol core functionalized with an ethylsulfonyl group. This molecular structure makes it a valuable building block for synthesizing more complex chemical entities, particularly in the development of dyes, pigments, and advanced pharmaceutical compounds. It is primarily sought by R&D chemists and process engineers in the fine chemical, agrochemical, and specialty dye manufacturing sectors who require high-purity, consistent intermediates for their synthesis workflows.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of azo dyes and other complex colorants, contributing to chromophore development.
• Pharmaceutical Synthesis: Serves as a versatile building block for creating novel active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Agrochemical Research: Used in the development and production of advanced herbicides, pesticides, and plant growth regulators.
• Chemical Research & Development: Employed as a standard or custom intermediate in organic synthesis and process chemistry for creating sulfone and nitro-aromatic derivatives.
• Photographic Chemicals: Can be utilized in the formulation of certain light-sensitive compounds and photographic developers.
• Polymer Modification: Acts as a functional monomer or additive to introduce specific sulfone and nitro groups into polymer chains, altering material properties.

Basic Information

Product Name	4-(Ethylsulphonyl)-2-Nitrophenol
CAS No.	84996-11-2
Molecular Formula	C8H9NO5S
Molecular Weight	231.23 g/mol
Synonyms	2-Nitro-4-(ethylsulfonyl)phenol; 4-Ethylsulfonyl-2-nitrophenol; Phenol, 4-(ethylsulfonyl)-2-nitro-; 2-Nitro-4-ethylsulfonylphenol; 4-(Ethylsulfonyl)-2-nitro-1-hydroxybenzene; 1-Hydroxy-2-nitro-4-(ethylsulfonyl)benzene; 84996-11-2 (CAS Registry)
EINECS	Contact for details

Quality Control

Every batch of 4-(Ethylsulphonyl)-2-Nitrophenol is produced under a strict quality management system and undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Our standard grade typically meets a purity specification of ≥97% (HPLC), with custom purities available. A detailed Certificate of Analysis (COA) documenting physical characteristics, assay, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The compound is light-sensitive (store away from light), and appropriate handling procedures for nitrophenol derivatives should be followed.

Specification

Item	Specification
Appearance	Yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.