Description

Thianaphthene is a sulfur-containing heterocyclic aromatic compound, also known as benzothiophene, with the CAS number 95-15-8. It serves as a versatile and high-value organic intermediate in the synthesis of advanced materials and fine chemicals. This compound is essential for research and manufacturing in the pharmaceutical, agrochemical, and material science industries, where its unique fused-ring structure is leveraged to develop novel products.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting central nervous system and cardiovascular diseases.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and fungicides due to its bioactivity-enhancing properties.
• Organic Electronics: Acts as a precursor for organic semiconductors, conductive polymers, and light-emitting materials in OLED and photovoltaic applications.
• Dye and Pigment Manufacturing: Employed as a core structure for synthesizing specialized dyes, fluorescent markers, and photostable pigments.
• Ligand and Catalyst Development: Utilized in organometallic chemistry to create novel ligands for catalysis and material science research.
• Research & Development: Serves as a standard and starting material in academic and industrial R&D for exploring new chemical entities and reactions.

Basic Information

Product Name	Thianaphthene
CAS No.	95-15-8
Molecular Formula	C8H6S
Molecular Weight	134.20 g/mol
Synonyms	Benzothiophene; Benzo[b]thiophene; 1-Benzothiophene; Thianaphthene; Benzothiofuran; 1-Thianaphthene; NSC 8927; USAF EK-1770
EINECS	202-395-7

Quality Control

Our Thianaphthene is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatography (HPLC, GC) and spectroscopic methods (IR, NMR), to ensure identity, purity, and consistency. We provide detailed Certificates of Analysis (COA) with every shipment, confirming compliance with agreed specifications. Our quality commitment supports applications requiring high-purity intermediates under GMP or ISO guidelines.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	31 - 33 °C
Loss on Drying	≤ 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.