CAS 89-32-7 Pyromellitic Dianhydride - Materials / Alfa Chemistry

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Pyromellitic Dianhydride

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Catalog Number

ACM89327-1

CAS Number

89-32-7

Product Name

Pyromellitic Dianhydride

Structure

Category

Monomers; Polymers

Description

DryPowder; DryPowder, PelletsLargeCrystals;WHITE HYGROSCOPIC CRYSTALLINE POWDER WITH CHARACTERISTIC ODOUR.

IUPAC Name

furo[3,4-f][2]benzofuran-1,3,5,7-tetrone

Molecular Weight

218.12g/mol

Molecular Formula

C10H₂O6;C6H2(C2O3)2;C10H₂O6

Canonical SMILES

C1=C2C(=CC3=C1C(=O)OC3=O)C(=O)OC2=O

InChI

InChI=1S/C10H₂O6/c11-7-3-1-4-6(10(14)16-8(4)12)2-5(3)9(13)15-7/h1-2H

InChI Key

ANSXAPJVJOKRDJ-UHFFFAOYSA-N

Boiling Point

397-400 °C;397-400 °C

Melting Point

286 °C;287 °C

Density

1.68 g/cu cm;1.68 g/cm³

Solubility

Soluble in some organic solvents;In water, 130 mg/L @ 25 °C /Estimated/;Solubility in water: reaction

Application

Pyromellitic Dianhydride, a versatile monomer, is primarily used in the preparation of polyimide polymers, like Kapton, and various thermoplastics, including polyesters and polyethers. It serves as a critical component in the production of epoxy resins, functioning as a curing agent for adhesives, coatings, and molding powders. Additionally, due to its exceptional mechanical, thermal, and oxidative stability, it is involved in creating high-performance coatings. As an essential intermediate, it plays a significant role in polyimide-based materials found in printed circuit boards, tape automated bonding, and magnetic wire insulation. Despite its widespread industrial applications, it's important to handle Pyromellitic Dianhydride with care due to its potential as a respiratory irritant and its association with occupational asthma.

Color/Form

White powder

Complexity

349

Covalently-Bonded Unit Count

EC Number

201-898-9

Exact Mass

217.985138g/mol

Formal Charge

Heavy Atom Count

ICSC Number

1375

Log P

log Kow = 2.14 /Estimated/

MeSH Entry Terms

1,2,4,5-benzenetetracarboxylic anhydride;1,2,4,5-benzenetetracarboxylic dianhydride;1-PMDA;pyromellitic acid dianhydride;pyromellitic dianhydride

Monoisotopic Mass

217.985138g/mol

NSC Number

4798

Other Experimental

Henry's Law constant = 7.5X10-9 atm-cu m/mole @ 25 °C /Estimated/;Hydroxyl radical reaction rate constant = 2.9X10-13 cu cm/molecule-sec @ 25 °C /Estimated/

Rotatable Bond Count

RTECS Number

DB9300000

UNII

2Z22T30QZQ

Vapor Pressure

4.8X10-6 mm Hg @ 25 °C /Estimated/

XLogP3

0.7

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