Description

2-Amino-5-Hydroxybenzenesulfonic Acid is a versatile aromatic sulfonic acid derivative that serves as a critical building block in advanced organic synthesis. Its unique structure, featuring both amino and hydroxy substituents, makes it a valuable intermediate for creating complex molecules with specific functional properties. This compound is essential for manufacturers in the dye, pharmaceutical, and agrochemical industries seeking to develop high-performance products.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of azo dyes, acid dyes, and reactive dyes, contributing to color fastness and vibrancy.
• Pharmaceutical Synthesis: Used as a building block for active pharmaceutical ingredients (APIs), particularly in compounds requiring sulfonamide or aniline-based structures.
• Agrochemical Production: Employed in the manufacture of herbicides, fungicides, and plant growth regulators.
• Chemical Research & Development: Serves as a versatile reagent in organic chemistry for coupling reactions and the development of novel sulfonated compounds.
• Corrosion Inhibitor Formulation: Used in specialty chemical blends designed to protect metal surfaces in industrial processes.
• Photographic Chemical: Acts as a component in certain developers and sensitizers for photographic films and papers.

Basic Information

Product Name	2-Amino-5-Hydroxybenzenesulfonic Acid
CAS No.	2835-05-4
Molecular Formula	C6H7NO4S
Molecular Weight	189.19 g/mol
Synonyms	5-Amino-2-hydroxybenzenesulfonic acid; 2-Hydroxy-5-aminobenzenesulfonic acid; 5-Aminophenol-2-sulfonic acid; 1-Amino-4-hydroxy-3-sulfobenzene; 4-Hydroxyaniline-3-sulfonic acid; 2-Hydroxy-m-phenylaminesulfonic acid; 5-Amino-2-hydroxybenzene-1-sulfonic acid
EINECS	220-603-1

Quality Control

Our 2-Amino-5-Hydroxybenzenesulfonic Acid 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 industrial and research applications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and batch-to-batch consistency.

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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality and stability.

Specification

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