Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride(BTDA) - ≥99.5%, used for Used in the synthesis of polyimides. various applications , CAS No.2421-28-5

CAS: 2421-28-5 Cat. No.: B1507209 Formula: C₁₇H₆O₇ Molecular Weight: 322.23 Beilstein Registry Number: 761777 EC Number: 219-348-1

GRADE & PURITY ≥99.5%

Storage

Room temperature,Argon charged

Shipped In

Normal

Overview

Benzophenone-3,3′,4,4′-tetracarboxylic acid is formed by hydrolysis, it can be converted to the dianhydride by treating with Ac2O (molar ratio 4 to 1 of acid).The dianhydride is used to synthesize polyimides, which are highly flexible in nature due to the presence of keto and carbonyl groups in the dianhydride molecule. The keto and carbonyl groups subsequently increase the spacing between the imide rings enhancing the solubility and processibility.

Specifications

Specifications & Purity

≥99.5%

Application

Used in the synthesis of polyimides.

Storage

Room temperature,Argon charged

Shipped In

Normal

Purity

≥99.5%

Names and Identifiers

Canonical Smiles

O=C(C1=CC2=C(C=C1)C(=O)OC2=O)C1=CC2=C(C=C1)C(=O)OC2=O

IUPAC Name

5,5'-Carbonyldi(2-benzofuran-1,3-dione)

InChIKey

VQVIHDPBMFABCQ-UHFFFAOYSA-N

INCHI

InChI=1S/C17H6O7/c18-13(7-1-3-9-11(5-7)16(21)23-14(9)19)8-2-4-10-12(6-8)17(22)24-15(10)20/h1-6H

Isomeric SMILES

C1=CC2=C(C=C1C(=O)C3=CC4=C(C=C3)C(=O)OC4=O)C(=O)OC2=O

WGK Germany

1

Molecular Weight

322.23

Beilstein

761777

Reaxy-Rn

761777

Reaxys-RN_link_address

https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=761777&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Benzenoids
    • Class Benzene and substituted derivatives
      • Subclass Benzophenones

• Kingdom: Organic compounds
• Superclass: Benzenoids
• Class: Benzene and substituted derivatives
• Subclass: Benzophenones
• Intermediate Tree Nodes: Not available
• Direct Parent: Benzophenones
• Alternative Parents: Tetracarboxylic acids and derivatives Phthalic anhydrides Isobenzofuranones Aryl ketones Carboxylic acid anhydrides Oxacyclic compounds Organic oxides Hydrocarbon derivatives
• Molecular Framework: Aromatic heteropolycyclic compounds
• Substituents: Benzophenone - Tetracarboxylic acid or derivatives - Phthalic_anhydride - Phthalic anhydride - Benzofuranone - Isobenzofuranone - Isocoumaran - Aryl ketone - Carboxylic acid anhydride - Ketone - Carboxylic acid derivative - Oxacycle - Organoheterocyclic compound - Hydrocarbon derivative - Organic oxygen compound - Organooxygen compound - Organic oxide - Aromatic heteropolycyclic compound
• Description: This compound belongs to the class of organic compounds known as benzophenones. These are organic compounds containing a ketone attached to two phenyl groups.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: Soluble in DMF (0.1 g/mL). Reacts with water.Soluble in THF, Acetone
• Sensitivity: Moisture Sensitive
• Flash Point(°F): 615°F
• Flash Point(°C): 324°C
• Boil Point(°C): 320°C/5mm
• Melt Point(°C): 226°C