3,3',4,4'-Benzophenonetetracarboxylic dianhydride (BTDA)

CAS Number 2421-28-5

Chemistry Building Blocks, COF Ligands, Diamines and Dianhydrides, Heterocyclic Building Blocks, Materials, Monomers, Porous Organic Frameworks

MSDS

3,3',4,4'-Benzophenonetetracarboxylic dianhydride (BTDA) CAS 2421-28-5

A benzophenone-cored dianhydride building block

As an intermediate for the synthesis of polyimides in application of photosensitizers, high-performance polymers and OFETs

Specifications | MSDS | Literature and Reviews

3,3',4,4'-Benzophenonetetracarboxylic dianhydride (BTDA, CAS number 2421-28-5) is derived from benzophenone with two dianhydride on both terminals. The primary use of 3,3',4,4'-Benzophenonetetracarboxylic dianhydride is for synthesizing polyimide with primary amines undergoing nucleophilic substitution followed by condensation reactions. Benzophenone-cored polyimide is used in photocatalytic dye degradation applications such as methylene blue in water. Potentially it can extend its applications to dye-sensitized solar cells (DSSCs) and photocatalytic reactions.

The polyimide/copolymer formed by BTDA has shown high thermal stability and good mechanical properties. This polyimide is an electret and used as a dielectric layer for high performance OFET memory devices.

Benzophenone building block

for the synthesis of OLED and organic photovoltaic materials

Worldwide shipping

Quick and reliable shipping

Capped wtih tetracaboxylic anhydride

for facile reactions

High purity

>98.5% Purity

General Information

CAS Number	2421-28-5
Chemical Formula	C₁₇H₆O₇
Full Name	3,3',4,4'-Benzophenonetetracarboxylic dianhydride
Molecular Weight	322.23 g/mol
Synonyms	Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride 4,4′-Carbonyldiphthalic anhydride BTDA
Classification / Family	Benzophenone derivatives, Dianhydride building blocks, Polyimides, OFETs, Photosensitizers

Chemical Structure

Product Details

Purity	>98.5%
Melting Point	T_m = 218 °C – 222 °C
Appearance	White to off-white powder

MSDS Documentation

3,3',4,4'-Benzophenonetetracarboxylic dianhydride (BTDA) MSDS Sheet

Literature and Reviews

Developing high-efficiency π conjugated polymer semiconductor for photocatalytic degradation of dyes under visible light irradiation, S. Chu et al., RSC Adv., 4, 57153-57158(2014); DOI: 10.1039/C4RA11345D.
Electrospun antibacterial poly(vinyl alcohol)/Ag nanoparticles membrane grafted with 3,3′,4,4′-benzophenone tetracarboxylic acid for efficient air filtration, S. Li., Appl. Surf. Sci., 533, 147516(2020); DOI: 10.1016/j.apsusc.2020.147516.
Intrinsically negative photosensitive polyimides with enhanced high-temperature dimensional stability and optical transparency for advanced optical applications via simultaneous incorporation of trifluoromethyl and benzanilide units: preparation and properties, Y. Gao et al., polymers, 14, 3733(2022), DOI: 10.3390/polym14183733.

Nonvolatile transistor memory devices using high dielectric constant polyimide electrets, Y.-H. Chou et al., J. Mater. Chem. C, 1, 3235–3243(2013); DOI: 10.1039/c3tc30252k.
Polymeric charge storage electrets for nonvolatile organic field effect transistor memory devices, Y.-H. Chou et al., Polym. Chem., 6, 341-352(2015); DOI: 10.1039/C4PY01213E.
4,4',4''-triaminotriphenylamine-based porous polyimide as visible light-driven photocatalysts, Q. Wang et al., New J. Chem., 42, 12205-12211(2018); DOI: 10.1039/C8NJ02173B.
Synthesis and properties of new clay-reinforced aromatic polyimide/nanocomposite-based 3,3′,4,4′-benzophenonetetracarboxylic dianhydride and 1,3-bis(4-aminophenoxy)propane, K. Faghihi et al., Sci. Eng. Compos. Mater., 21(2), 151–157(2014); DOI: 10.1515/secm-2012-0136.