Description

1-Methyl-1H-Benzimidazole-2-Sulfonic Acid is a key sulfonated benzimidazole derivative, serving as a versatile and critical building block in advanced organic synthesis. Its value lies in its dual functionality, acting as both a strong acid and a precursor for creating complex heterocyclic compounds with tailored properties. This high-purity intermediate is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where precise molecular architecture is required.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting various therapeutic areas.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators due to its bioactive benzimidazole core.
• Dye and Pigment Manufacturing: Serves as a key intermediate for producing sulfonated dyes and optical brighteners, enhancing color fastness and solubility.
• Corrosion Inhibitor Formulation: Incorporated into specialty chemical blends to protect metal surfaces in industrial processes.
• Polymer Modification: Acts as a functional monomer or additive to impart specific ionic or acidic characteristics to polymers.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new chemical entities and reaction pathways.

Basic Information

Product Name	1-Methyl-1H-Benzimidazole-2-Sulfonic Acid
CAS No.	5533-38-0
Molecular Formula	C8H8N2O3S
Molecular Weight	212.22 g/mol
Synonyms	1-Methylbenzimidazole-2-sulfonic acid; 2-Sulfo-1-methylbenzimidazole; 1-Methyl-2-benzimidazolesulfonic Acid; NSC 403697; 1-Methyl-1H-benzo[d]imidazole-2-sulfonic acid; 2-(1-Methyl-1H-benzimidazol-2-yl)sulfonic acid; Benzimidazole-2-sulfonic acid, 1-methyl-
EINECS	226-881-5

Quality Control

Our 1-Methyl-1H-Benzimidazole-2-Sulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets the highest standards of purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, purity, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your specifications.

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). This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep away from strong bases and oxidizing agents.

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

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