Description

Tetraoxo-2H-Dibenzo(D,D’)Benzo(1,2-B,5,4-B’)Dithiophene-3,9-Disulfonic Acid is a high-purity, multifunctional organic intermediate characterized by its complex polycyclic aromatic structure and dual sulfonic acid groups. This compound matters for its role as a key building block in the synthesis of advanced functional materials, particularly those requiring precise electronic properties and high thermal stability. It is primarily needed by manufacturers in the organic electronics, specialty dyes and pigments, and pharmaceutical research sectors.

Application

• Organic Semiconductor Precursor: A critical intermediate for synthesizing n-type organic semiconductors and electron-transport materials used in OLEDs, OFETs, and perovskite solar cells.
• Functional Dye Synthesis: Serves as a core structure for creating high-performance, sulfonated dyes and pigments with enhanced solubility and color fastness.
• Pharmaceutical Intermediate: Used in research and development for constructing complex pharmacophores, particularly in targeted drug discovery programs.
• Ligand for Catalysis: Can be utilized to develop novel sulfonated ligands for metal-organic frameworks (MOFs) and homogeneous catalysis.
• Polymer Modification: Acts as a monomer or grafting agent to introduce sulfonic acid functionality into polymers, improving hydrophilicity or ionic conductivity.
• Analytical Chemistry Reagent: Employed as a specialized standard or reagent in analytical method development due to its distinct spectroscopic signature.

Basic Information

Product Name	Tetraoxo-2H-Dibenzo(D,D’)Benzo(1,2-B,5,4-B’)Dithiophene-3,9-Disulfonic Acid
CAS No.	133476-13-8
Molecular Formula	C18H6O8S4
Molecular Weight	502.48 g/mol
Synonyms	2H-Dibenzo[d,d']benzo[1,2-b:5,4-b']dithiophene-3,9-disulfonic acid, 1,3,8,10-tetraoxo-; 1,3,8,10-Tetraoxo-2H-dibenzo[d,d']benzo[1,2-b:5,4-b']dithiophene-3,9-disulfonic acid; Naphtho[2',3':4,5]thieno[3,2-b]thiophene-2,7-disulfonic acid, 3,4,9,10-tetraoxo-; Tetraoxodibenzodithiophenedisulfonic Acid; TDDSA
EINECS	Contact for details

Quality Control

Our Tetraoxo-2H-Dibenzo(D,D’)Benzo(1,2-B,5,4-B’)Dithiophene-3,9-Disulfonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure consistent high quality and batch-to-batch reproducibility. Certificates of Analysis (COA) detailing all specifications are available upon request.

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 product is hygroscopic (moisture-sensitive) and must be kept under anhydrous conditions. For long-term storage, consider using a desiccator or inert atmosphere to maintain purity.

Specification

Item	Specification
Appearance	Yellow to brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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