Description

1,3-Isobenzofurandione, 5,5'-[(3,3',5,5'-Tetramethyl[1,1'-Biphenyl]-4,4'-Diyl)Bis(Oxy)]Bis- is a specialized high-purity chemical intermediate characterized by its biphenyl core and anhydride functional groups. This compound matters for its role as a critical building block in the synthesis of advanced polymers and high-performance materials, offering precise structural control. It is primarily needed by manufacturers in the polymer, specialty chemical, and advanced material research sectors seeking to develop products with enhanced thermal and mechanical properties.

Application

• Polymer Synthesis: Key monomer for producing high-performance polyimides and polyamides with excellent thermal stability.
• Advanced Material Research: Serves as a precursor for novel organic frameworks and specialty coatings.
• Epoxy Curing Agents: Used in the formulation of high-temperature resistant epoxy resin systems.
• Pharmaceutical Intermediates: Potential building block for the synthesis of complex active pharmaceutical ingredients (APIs).
• Liquid Crystal Polymers (LCPs): Aromatic monomer for creating LCPs used in electronics and high-strength fibers.
• Adhesive & Sealant Formulations: Imparts enhanced durability and chemical resistance in industrial adhesives.

Basic Information

Product Name	1,3-Isobenzofurandione, 5,5'-[(3,3',5,5'-Tetramethyl[1,1'-Biphenyl]-4,4'-Diyl)Bis(Oxy)]Bis-
CAS No.	150314-47-9
Molecular Formula	C32H22O8
Molecular Weight	534.52 g/mol
Synonyms	5,5'-[(3,3',5,5'-Tetramethyl[1,1'-biphenyl]-4,4'-diyl)bis(oxy)]bis(1,3-isobenzofurandione); 4,4'-Bis(3,4-dicarboxyphenoxy)-3,3',5,5'-tetramethylbiphenyl Dianhydride; 3,3',5,5'-Tetramethyl-4,4'-bis(3,4-dicarboxyphenoxy)biphenyl Dianhydride; TM-BPADA; Tetramethyl-BPADA; BPADA Derivative; Biphenyltetracarboxylic Dianhydride Derivative
EINECS	Contact for details

Quality Control

Our 1,3-Isobenzofurandione, 5,5'-[(3,3',5,5'-Tetramethyl[1,1'-Biphenyl]-4,4'-Diyl)Bis(Oxy)]Bis- is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for advanced material synthesis. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory compliance needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases and amines.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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