Description

5-Methylthianaphthene is a specialized organic sulfur heterocycle, also known as 5-methylbenzo[b]thiophene. This compound serves as a valuable chemical intermediate and building block in advanced organic synthesis, prized for its unique molecular framework. It is primarily utilized in the research and development of pharmaceuticals, agrochemicals, and functional materials, where its structure enables the creation of novel molecules with targeted properties.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly those containing benzothiophene cores.
• Agrochemical Research: Used in developing novel herbicides, fungicides, and insecticides that leverage sulfur heterocycle chemistry for enhanced activity.
• Material Science: Serves as a precursor for organic semiconductors, conductive polymers, and other advanced electronic materials.
• Organic Synthesis & Catalysis: A versatile reagent for constructing complex sulfur-containing heterocycles in academic and industrial R&D settings.
• Flavor & Fragrance Industry: Potential intermediate for synthesizing specific sulfur-based aroma compounds, subject to purity and regulatory compliance.
• Chemical Research: Used as a standard or reference compound in analytical chemistry and spectroscopic studies.

Basic Information

Product Name	5-Methylthianaphthene
CAS No.	14315-14-1
Molecular Formula	C9H8S
Molecular Weight	148.22 g/mol
Synonyms	5-Methylbenzo[b]thiophene; 5-Methyl-1-benzothiophene; 5-Methylbenzothiophene; 1-Benzothiophene, 5-methyl-; 5-Methylthianaphthene; 5-Methyl-1-benzothiofuran; 5-Methylbenzo(b)thiophene
EINECS	Contact for details

Quality Control

Our production of 5-Methylthianaphthene adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including GC, HPLC, and NMR. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment. We support custom synthesis and can tailor specifications to meet specific research or cGMP starting material requirements.

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 under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0% (Standard Grade)
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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