Description

1H-Benzotriazole-6-Sulfonic Acid is a specialized sulfonated benzotriazole derivative, a key intermediate in the synthesis of advanced organic compounds. This product matters for its role in creating high-performance materials and fine chemicals, offering a reactive sulfonic acid group on a stable heterocyclic scaffold. It is primarily needed by manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing active ingredients, corrosion inhibitors, and photographic chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those requiring a sulfonated heterocyclic moiety.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Corrosion Inhibitor Precursor: Serves as a starting material for manufacturing high-efficiency corrosion inhibitors for metal treatment and cooling systems.
• Dye & Pigment Manufacturing: An intermediate in the synthesis of specialized azo dyes and organic pigments.
• Photographic Chemical: Used in the formulation of certain photographic developers and anti-foggants.
• Polymer Modification: Employed to introduce sulfonic acid groups into polymers for ion-exchange resins or to enhance hydrophilicity.
• Research & Development: A valuable reagent in organic chemistry R&D for constructing complex molecular architectures.

Basic Information

Product Name	1H-Benzotriazole-6-Sulfonic Acid
CAS No.	91159-88-5
Molecular Formula	C6H5N3O3S
Molecular Weight	199.19 g/mol
Synonyms	6-Sulfobenzotriazole; Benzotriazole-6-sulfonic acid; 1H-1,2,3-Benzotriazole-6-sulfonic acid; 6-Benzotriazolesulfonic Acid; 2H-Benzotriazole-6-sulfonic acid; BTZS; 1,2,3-Benzotriazole-6-sulfonic acid
EINECS	Contact for details

Quality Control

Our 1H-Benzotriazole-6-Sulfonic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets the high-purity standards required for fine chemical synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee traceability and consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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