Description

5,5-Dioxo-5H-Dibenzo[B,D]Thiophene-3,7-Dicarboxylic Acid is a high-purity, multi-functional organic acid derivative with a complex polycyclic structure. This compound serves as a critical advanced intermediate for synthesizing high-performance materials and specialty chemicals, valued for its unique electronic and structural properties. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and organic electronics sectors for developing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in therapeutic areas requiring complex heterocyclic scaffolds.
• Agrochemical Synthesis: Used in the research and development of advanced pesticides and herbicides, where its structure contributes to biological activity.
• Organic Electronic Materials: Serves as a precursor for electron-transport materials (ETMs) or emissive layers in Organic Light-Emitting Diodes (OLEDs) and other optoelectronic devices.
• Polymer Chemistry: Acts as a monomer or cross-linking agent for creating high-performance, heat-resistant polymers and polyimides.
• Dye and Pigment Manufacturing: Intermediate for producing specialized dyes and pigments with enhanced light-fastness and color properties.
• Research & Development: A valuable reagent in academic and industrial laboratories for exploring new chemical reactions and material properties.

Basic Information

Item	Details
Product Name	5,5-Dioxo-5H-Dibenzo[B,D]Thiophene-3,7-Dicarboxylic Acid
CAS No.	23613-32-3
Molecular Formula	C16H8O6S
Molecular Weight	328.30 g/mol
Synonyms	3,7-Dibenzothiophenedicarboxylic Acid, 5,5-Dioxide; Dibenzothiophene-3,7-dicarboxylic Acid, 5,5-Dioxide; 5H-Dibenzo[b,d]thiophene-3,7-dicarboxylic Acid, 5,5-Dioxide; 5,5-Dioxodibenzothiophene-3,7-dicarboxylic Acid; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Every batch of 5,5-Dioxo-5H-Dibenzo[B,D]Thiophene-3,7-Dicarboxylic Acid is manufactured under a strict quality management system. We provide comprehensive analytical documentation, including a Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. Our quality protocols are designed to meet the stringent requirements of GMP and ISO standards for advanced intermediates. Specifications and COAs are available upon request to ensure full traceability and compliance for your application.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent degradation. Keep away from strong acids and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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