Description

Thieno[3,4-B]-1,4-Dioxin, 2,3-Dihydro-5-(4-Methylphenyl)- is a specialized heterocyclic organic compound featuring a fused thiophene-dioxin structure, serving as a high-value chemical intermediate. Its unique molecular architecture makes it a critical building block for advanced material science and pharmaceutical research, enabling the synthesis of novel compounds with tailored electronic and photophysical properties. This product is essential for R&D chemists and process developers in the organic electronics, agrochemical, and pharmaceutical industries seeking to innovate with complex heterocyclic cores.

Application

• Organic Semiconductor Precursor: A key intermediate in the synthesis of novel donor-acceptor polymers and small molecules for organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs).
• Pharmaceutical Intermediate: Used in the research and development of new active pharmaceutical ingredients (APIs), particularly those targeting central nervous system (CNS) disorders.
• Agrochemical Synthesis: Serves as a sophisticated building block for creating new generation herbicides and fungicides with enhanced efficacy.
• Ligand and Catalyst Development: Utilized in organometallic chemistry to develop novel ligands for catalytic systems.
• Dye and Pigment Research: Acts as a core structure for developing functional dyes with specific light-absorption and emission characteristics.
• Material Science Research: Investigated for use in conductive polymers, electrochromic materials, and chemical sensors.

Basic Information

Product Name	Thieno[3,4-B]-1,4-Dioxin, 2,3-Dihydro-5-(4-Methylphenyl)-
CAS No.	925674-57-3
Molecular Formula	C13H12O2S
Molecular Weight	232.30 g/mol
Synonyms	5-(4-Methylphenyl)-2,3-dihydrothieno[3,4-b][1,4]dioxine; 2,3-Dihydro-5-(p-tolyl)thieno[3,4-b][1,4]dioxine; Thieno[3,4-b]-1,4-dioxin, 2,3-dihydro-5-(4-methylphenyl)-; 5-(4-Methylphenyl)-2,3-dihydrothieno[3,4-b]dioxine; p-Tolyl-substituted thienodioxine; CAS 925674-57-3
EINECS	Contact for details

Quality Control

Every batch of Thieno[3,4-B]-1,4-Dioxin, 2,3-Dihydro-5-(4-Methylphenyl)- undergoes rigorous analytical testing to ensure identity, purity, and consistency. Our quality assurance protocols are designed to meet the stringent requirements of research and process development. A comprehensive Certificate of Analysis (COA) detailing purity (typically by HPLC), identity confirmation (by NMR and IR), and impurity profile is provided with each shipment to support your quality management system.

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 the container sealed to prevent contamination and moisture absorption.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
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.