Description

2-[(4-Aminophenyl)Sulfonyl]Ethyl Hydrogen Sulfate is a specialized organic intermediate featuring both a sulfonamide and a sulfate ester functional group. This unique bifunctional structure makes it a valuable building block for the synthesis of more complex molecules, particularly in the pharmaceutical and specialty chemical industries. It is primarily utilized by research and development chemists and process engineers involved in creating active pharmaceutical ingredients (APIs), dyes, and functional polymers.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drugs and other bioactive molecules.
• Dye and Pigment Manufacturing: Used as a reactive intermediate for producing sulfonated azo dyes and other colorants.
• Polymer Modification: Serves as a functional monomer or cross-linking agent to introduce sulfonate groups into polymers for enhanced hydrophilicity or ion-exchange capacity.
• Chemical Research: Valuable building block in organic synthesis for constructing complex molecules with specific sulfonyl and sulfate functionalities.
• Surfactant Synthesis: Potential intermediate for creating specialized anionic surfactants with unique properties.

Basic Information

Product Name	2-[(4-Aminophenyl)Sulfonyl]Ethyl Hydrogen Sulfate
CAS No.	2494-89-5
Molecular Formula	C8H11NO6S2
Molecular Weight	281.31 g/mol
Synonyms	4-Amino-benzenesulfonic acid 2-sulfooxyethyl ester; 2-[(4-Aminophenyl)sulfonyl]ethyl sulfate; Ethanol, 2-[(4-aminophenyl)sulfonyl]-, hydrogen sulfate; 2-Hydroxyethyl 4-aminobenzenesulfonate sulfate; 4-Aminophenyl 2-sulfoethyl sulfone; APSES; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our 2-[(4-Aminophenyl)Sulfonyl]Ethyl Hydrogen Sulfate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for use as a fine chemical intermediate. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee traceability, consistency, and reliability for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.5%

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