Description

Tetraphenylphthalic Anhydride is a high-purity, multi-functional aromatic anhydride derivative. This compound serves as a critical building block and performance additive in advanced material synthesis, valued for its unique structural properties. It is primarily utilized by R&D laboratories and industrial manufacturers in the polymer, electronics, and specialty chemical sectors seeking to enhance material characteristics.

Application

• As a key monomer or cross-linking agent in the synthesis of high-performance polyimides and epoxy resins for electronics and aerospace.
• As a precursor or intermediate in the development of organic semiconductors and charge-transport materials for OLEDs and photovoltaics.
• In the formulation of advanced adhesives, sealants, and encapsulants requiring high thermal and chemical stability.
• As a modifier or additive to impart specific rheological or mechanical properties to engineering plastics.
• For research and development of novel pharmaceutical intermediates and agrochemicals.
• In the synthesis of dyes, pigments, and optical brighteners.

Basic Information

Product Name	Tetraphenylphthalic Anhydride
CAS No.	4741-53-1
Molecular Formula	C34H22O3
Molecular Weight	478.54 g/mol
Synonyms	TPPA; 1,3-Dioxoisobenzofuran-4,5,6,7-tetrayltetrabenzene; Tetraphenyl-1,3-isobenzofurandione; 4,5,6,7-Tetraphenylisobenzofuran-1,3-dione; 4,5,6,7-Tetraphenylphthalic anhydride; 1,3-Isobenzofurandione, 4,5,6,7-tetraphenyl-; Benzene, 1,1',1'',1'''-(1,3-dihydro-1,3-dioxo-2-benzofuran-4,5,6,7-tetrayl)tetra-
EINECS	225-247-6

Quality Control

Our Tetraphenylphthalic Anhydride is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided and available upon request to support your quality assurance protocols.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	285 - 295 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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