Description

1,4-Dimethyldibenzothiophene is a high-purity, polycyclic aromatic sulfur heterocycle (PASH) of significant interest in advanced materials and analytical chemistry. This compound serves as a critical reference standard and a valuable synthetic building block for researchers and industrial chemists. It is primarily utilized in the development of organic semiconductors, as a model compound in petroleum geochemistry for sulfur fingerprinting, and in the synthesis of novel ligands and functional materials.

Application

• Petroleum Geochemistry & Fuel Analysis: Acts as a diagnostic molecular marker and internal standard for gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) to assess the maturity and origin of crude oils and refined products.
• Organic Electronic Materials: Used as a precursor or dopant in the research and development of organic light-emitting diodes (OLEDs), field-effect transistors (OFETs), and other semiconductor devices due to its electron-rich thiophene core.
• Chemical Synthesis: Serves as a key intermediate for synthesizing more complex dibenzothiophene derivatives, ligands for catalysis, and functional polymers.
• Environmental & Analytical Science: Employed as a certified reference material (CRM) for calibrating instruments and developing analytical methods to detect and quantify sulfur-containing pollutants.
• Academic & Industrial R&D: Essential for fundamental research in heterocyclic chemistry, photophysics, and materials science across university and corporate laboratories.

Basic Information

Product Name	1,4-Dimethyldibenzothiophene
CAS No.	21339-65-1
Molecular Formula	C₁₄H₁₂S
Molecular Weight	212.31 g/mol
Synonyms	1,4-Dimethyldibenzothiophene; Dibenzothiophene, 1,4-dimethyl-; 1,4-DMDBT; 4-Methyldibenzothiophene (ambiguous); Dibenzo[b,d]thiophene, 1,4-dimethyl-; NSC 163079
EINECS	Contact for details

Quality Control

Our 1,4-Dimethyldibenzothiophene is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, confirming compliance with your specifications. For research and industrial grades, we ensure traceability and batch-to-batch reliability.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%

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