Description

7-Bromo-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carbonyl Chloride 90 is a high-purity, reactive chemical intermediate essential for advanced organic synthesis. This compound matters because it serves as a critical building block for constructing complex heterocyclic systems, particularly in the development of novel functional materials and active pharmaceutical ingredients (APIs). Pharmaceutical, agrochemical, and advanced material research and development teams need this specialized reagent to enable precise molecular modifications and scaffold development.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or requiring complex heterocyclic cores.
• Agrochemical Synthesis: Building block for creating new-generation herbicides, fungicides, or insecticides with enhanced efficacy and selectivity.
• Functional Material Development: Used in the research and production of organic semiconductors, conductive polymers, and electrochromic materials due to its fused thienodioxine structure.
• Ligand and Catalyst Design: Serves as a starting point for synthesizing specialized ligands for catalysis or metal-organic frameworks (MOFs).
• Dye and Pigment Chemistry: Intermediate in the creation of advanced organic dyes and pigments with specific optical properties.
• Academic and R&D Laboratories: Essential reagent for methodological development and exploring new chemical spaces in synthetic organic chemistry.

Basic Information

Product Name	7-Bromo-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carbonyl Chloride 90
CAS No.	886851-53-2
Molecular Formula	C7H4BrClO3S
Molecular Weight	283.53 g/mol
Synonyms	7-Bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carbonyl chloride; 7-Bromothieno[3,4-b][1,4]dioxine-5-carbonyl chloride, 2,3-dihydro-; 886851-53-2; Thieno[3,4-b][1,4]dioxine-5-carbonyl chloride, 7-bromo-2,3-dihydro-; 5-Carbonyl chloride-7-bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine
EINECS	Contact for details

Quality Control

Our 7-Bromo-2,3-Dihydrothieno[3,4-B][1,4]Dioxine-5-Carbonyl Chloride 90 is manufactured under strict quality management systems. The product undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency meet the high standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder or solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 90.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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