Description

5-Methyl-1,3-Dihydro-Benzimidazol-2-One is a high-purity organic heterocyclic compound that serves as a critical building block in advanced chemical synthesis. Its value lies in its versatile benzimidazolone core, which is essential for constructing molecules with specific biological and material properties. This intermediate is primarily needed by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new-generation fungicides, herbicides, and plant growth regulators.
• Organic Light-Emitting Diode (OLED) Materials: Serves as a building block for electron-transport or host materials in display and lighting technologies.
• Polymer and Dye Chemistry: Incorporated into the structure of high-performance polymers, resins, and specialty dyes to enhance thermal stability or color properties.
• Research & Development: A valuable standard and starting material for academic and industrial research in medicinal and synthetic organic chemistry.
• Coordination Chemistry: Can act as a ligand for metal complexes in catalytic and material science applications.

Basic Information

Product Name	5-Methyl-1,3-Dihydro-Benzimidazol-2-One
CAS No.	5400-75-9
Molecular Formula	C8H8N2O
Molecular Weight	148.16 g/mol
Synonyms	5-Methyl-2-benzimidazolinone; 5-Methyl-1H-benzimidazol-2(3H)-one; 5-Methyl-2-hydroxybenzimidazole; 5-Methylbenzimidazolone; 2-Hydroxy-5-methylbenzimidazole; NSC 403697; 5-Methyl-2-benzimidazolone
EINECS	226-447-6

Quality Control

Our 5-Methyl-1,3-Dihydro-Benzimidazol-2-One is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specification results. Our quality commitment ensures the material meets the high standards required for research and commercial synthesis.

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). Keep away from strong oxidizing agents. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥98.0%
Melting Point	285°C - 295°C
Loss on Drying	≤0.5%
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.