Description

2-Amino-4,4'-Dichloro Diphenyl Ether-2'-Sulfonic Acid is a specialized aromatic sulfonic acid derivative that serves as a critical high-value intermediate in advanced organic synthesis. Its unique structure, featuring both amino and sulfonic acid functional groups on a dichlorinated diphenyl ether backbone, makes it indispensable for constructing complex molecules with specific electronic and steric properties. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical and specialty chemical sectors for developing active pharmaceutical ingredients (APIs) and functional dyes.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly those targeting specific receptors or requiring sulfonamide functionality.
• Dye and Pigment Manufacturing: Used in the production of high-performance, light-fast azo dyes and pigments for textiles, inks, and coatings.
• Liquid Crystal & OLED Materials: Serves as a precursor for synthesizing charge-transporting materials and emissive layer components in display technologies.
• Agrochemical Synthesis: An intermediate in creating advanced herbicides and fungicides with enhanced efficacy and environmental profiles.
• Polymer Modification: Employed to introduce sulfonic acid groups into polymer chains, enhancing properties like hydrophilicity or ion-exchange capacity.
• Chemical Research & Development: A valuable reagent for academic and industrial R&D exploring new synthetic methodologies and material science.

Basic Information

Product Name	2-Amino-4,4'-Dichloro Diphenyl Ether-2'-Sulfonic Acid
CAS No.	42293-27-6
Molecular Formula	C₁₂H₉Cl₂NO₄S
Molecular Weight	334.18 g/mol
Synonyms	4,4'-Dichloro-2-aminodiphenyl ether-2'-sulfonic acid; 2-Amino-4,4'-dichlorodiphenyl ether-2'-sulfonic acid; 2'-Sulfo-4,4'-dichloro-2-aminodiphenyl ether; 5-Amino-2',4-dichlorodiphenyl ether-2-sulfonic acid; 2-Amino-4,4'-dichlorodiphenyl-2'-ether sulfonic acid; Benzenesulfonic acid, 2-amino-4,4'-dichlorodiphenyl ether-2'-; 42293-27-6
EINECS	Contact for details

Quality Control

Our 2-Amino-4,4'-Dichloro Diphenyl Ether-2'-Sulfonic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for sensitive synthetic applications. Certificates of Analysis (COA) detailing all specifications and test results are provided and can be tailored to meet specific customer or regulatory requirements.

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). Due to its strong acid/organic solvent nature, keep away from incompatible materials such as strong bases and oxidizing agents. The container must be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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