Description

5A,5B,11A,11B-Tetrahydro-5A,11A-Dimethyldibenzo[B,H]Biphenylene-5,6,11,12-Tetrone is a high-purity, specialized organic compound with the CAS number 22738-32-5. This chemical serves as a critical advanced intermediate in the synthesis of complex organic molecules, valued for its unique polycyclic quinone structure. It is primarily sought by research institutions and fine chemical manufacturers engaged in developing novel materials, pigments, and pharmaceutical candidates.

Application

This specialized tetrone derivative finds utility in several advanced research and development sectors:

• Organic Electronic Materials: As a precursor for n-type semiconductors or electron-accepting units in organic photovoltaics (OPVs) and field-effect transistors (OFETs).
• High-Performance Pigments & Dyes: Serving as a key intermediate in the synthesis of complex polycyclic quinone-based pigments known for their color stability and durability.
• Pharmaceutical Research: Acting as a sophisticated building block for the synthesis of novel pharmacologically active compounds, particularly in oncology and antiviral research.
• Ligand Synthesis in Catalysis: Used to develop novel, sterically demanding ligands for transition metal catalysts in asymmetric synthesis.
• Advanced Polymer Chemistry: Incorporated as a monomer or cross-linking agent to create polymers with specific electronic or thermal properties.

Basic Information

Item	Detail
Product Name	5A,5B,11A,11B-Tetrahydro-5A,11A-Dimethyldibenzo[B,H]Biphenylene-5,6,11,12-Tetrone
CAS No.	22738-32-5
Molecular Formula	C22H14O4
Molecular Weight	342.34 g/mol
Synonyms	5A,11A-Dimethyldibenzo[b,h]biphenylene-5,6,11,12-tetrone; 5A,5B,11A,11B-Tetrahydro-5A,11A-dimethyl-; Dimethyltetrahydrodibenzobiphenylenetetrone; 22738-32-5; Dibenzo[b,h]biphenylene-5,6,11,12-tetrone, 5A,5B,11A,11B-tetrahydro-5A,11A-dimethyl-
EINECS	Contact for details

Quality Control

Our production of 5A,5B,11A,11B-Tetrahydro-5A,11A-Dimethyldibenzo[B,H]Biphenylene-5,6,11,12-Tetrone adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. All materials undergo rigorous analytical testing, including HPLC and NMR, to verify identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and R&D documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong bases and reducing agents. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	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.