Description

Hydroxylamine-o-Sulfonic Acid is a versatile and highly reactive sulfonated hydroxylamine derivative, primarily valued as a powerful aminating and sulfonating agent in organic synthesis. Its significance lies in its ability to introduce amino and sulfonic acid groups into complex molecular frameworks, enabling the production of fine chemicals, pharmaceuticals, and specialty materials. This compound is essential for research laboratories and industrial-scale manufacturers in the pharmaceutical, agrochemical, and dyestuff sectors seeking efficient and selective synthetic pathways.

Application

• Pharmaceutical Intermediate Synthesis: Key reagent for the introduction of amino groups in the production of active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Agrochemical Manufacturing: Used in the synthesis of herbicides, fungicides, and plant growth regulators requiring specific amine functionalities.
• Dyestuff and Pigment Production: Serves as a building block for azo dyes and other colorants, facilitating the creation of vibrant and stable colors.
• Polymer Modification: Employed to functionalize polymers and resins, imparting new properties such as improved adhesion, solubility, or biocompatibility.
• Chemical Research & Development: A valuable tool in academic and industrial R&D for exploring novel amination reactions and constructing heterocyclic compounds.
• Specialty Chemical Synthesis: Used in the manufacture of surfactants, corrosion inhibitors, and other performance chemicals where sulfonated amine structures are beneficial.

Basic Information

Product Name	Hydroxylamine-o-Sulfonic Acid
CAS No.	2950-43-8
Molecular Formula	H3NO4S
Molecular Weight	113.10 g/mol
Synonyms	Hydroxylamine-O-sulfonic Acid; Aminosulfonic acid, N-hydroxy-; HOSA; Hydroxylaminosulfonic Acid; Hydroxyamidosulfuric Acid; Oxammonium sulfonate; Hydroxylammonium sulfonate; NH2OSO3H
EINECS	220-968-5

Quality Control

Our Hydroxylamine-o-Sulfonic Acid is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure it meets high-purity standards suitable for synthetic applications. We provide full traceability and Certificates of Analysis (COA) are available upon request, detailing key parameters such as assay, identity, and impurity profiles to support your quality assurance processes.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Water Content (KF)	≤ 1.0 %
Solubility	Soluble in water

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