Description

5-Amino-2-Ethoxy-Benzenesulfonic Acid is a specialized organic intermediate featuring both an amino and a sulfonic acid functional group on a substituted benzene ring. This compound matters for its role as a key building block in the synthesis of complex dyes, pigments, and other functional chemicals. Industries such as fine chemical manufacturing, dye and pigment production, and pharmaceutical research require this high-purity intermediate for developing advanced materials and colorants.

Application

• Dye and Pigment Intermediate: A crucial precursor in the synthesis of azo dyes, acid dyes, and other complex colorants.
• Pharmaceutical Synthesis: Serves as a building block for active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Fine Chemical Production: Used in the manufacture of specialty chemicals, including corrosion inhibitors and surfactants.
• Research & Development: Employed in academic and industrial R&D for exploring new chemical entities and material properties.
• Photographic Chemicals: Can be utilized in the formulation of certain photographic developers and sensitizers.
• Liquid Crystal & OLED Materials: Acts as a potential intermediate for electronic chemicals used in display technologies.

Basic Information

Product Name	5-Amino-2-Ethoxy-Benzenesulfonic Acid
CAS No.	6375-02-6
Molecular Formula	C8H11NO4S
Molecular Weight	217.24 g/mol
Synonyms	2-Ethoxy-5-aminobenzenesulfonic Acid; 5-Amino-2-ethoxybenzenesulphonic Acid; 2-Amino-4-ethoxyphenylsulfonic Acid; 4-Ethoxy-m-aminobenzenesulfonic Acid; Benzenesulfonic acid, 5-amino-2-ethoxy-; 5-Amino-2-ethoxybenzenesulfonate; 2-Ethoxy-5-sulfoaniline
EINECS	228-928-5

Quality Control

Our 5-Amino-2-Ethoxy-Benzenesulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for fine chemical synthesis. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available upon request 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Off-white to light brown powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
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.