1,2,4,5-cyclohexanetetracarboxylic dianhydride (HPMDA) CAS 2754-41-8

Synonyms: Hydrogenated Pyromellitic Dianhydride; 1,2,4,5-Cyclohexanetetracarboxylic anhydride; Tetrahydrobenzo[1,2-c:4,5-c']difuran-1,3,5,7(3aH,7aH)-tetraone; Hexahydro-1H,3H-furo[3,4-f][2]benzofuran-1,3,5,7-tetrone

Shandong Aure Chemical Co., Ltd. is one of the leading suppliers of HPMDA in China and also one of the manufacturers of this product.

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Product Details

Aure Chemical Delivers Excellence in HPMDA

1,2,4,5-Cyclohexanetetracarboxylic dianhydride (HPMDA, CAS 2754-41-8) is a cycloaliphatic dianhydride monomer used primarily in the synthesis of high-performance polyimides and polyesters, offering low color, excellent thermal and chemical resistance, high proton conductivity, and enhanced photoactivity.

Basic Information of HPMDA

Product Name	1,2,4,5-cyclohexanetetracarboxylic dianhydride
Abbreviation	HPMDA
CAS Number	2754-41-8
Molecular Formula	C10H8O6
Molecular Weight	224.17 g/mol
Appearance	White to almost white powder to crystal
Purity	≥99%
Package	1kg/bottle, 20kg/drum, or customized
Molecular formula

Key Properties

Thermal Stability: Excellent, suitable for high-temperature resistant polymers (e.g., polyimides)
Solubility Advantage: Compared with aromatic dianhydrides, HPMDA-based polyimides offer better solubility in organic solvents
Moisture Absorption: Low, which contributes to dimensional stability of derived polymers
Mechanical Performance: When polymerized, imparts toughness and flexibility due to the alicyclic structure

Key Applications of HPMDA

Electronics and Microelectronics: Incorporated into low-color polyimide films for optical fiber claddings, microelectronics substrates, displays, and high-frequency components due to its transparency and dielectric properties.

Fuel Cells and Membranes: Utilized in proton-conducting membranes for high-temperature fuel cells, achieving conductivity up to 0.2 S/cm under humid conditions.

Aerospace and Military: Employed in rugged, heat-resistant materials for military roles and aerospace components, leveraging polyimides' durability in extreme environments.

Biomedical and Materials Science: Applied in bioimaging polymers, photochromic materials, and biodegradable polyesters with photoactivity for research and therapeutic uses.

Pharmaceutical and Organic Synthesis: Serves as an intermediate in pharmaceutical production and laboratory R&D for synthesizing multifunctional compounds.

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