Aure Chemical Delivers Excellence in HPMDA
1,2,4,5-Cyclohexanetetracarboxylic dianhydride (HPMDA, CAS 2754-41-8) is a cycloaliphatic dianhydride
widely used as a performance-modifying monomer in the synthesis of low-color, optically transparent,
and functional polyimides. Owing to its alicyclic structure, HPMDA-based polymers exhibit excellent optical
transparency, improved solubility, low moisture absorption, balanced thermal stability, and enhanced
flexibility, making it particularly suitable for optical, dielectric, membrane, and advanced functional
material applications.
Basic Information of HPMDA
| Product Name | 1,2,4,5-Cyclohexanetetracarboxylic dianhydride |
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| Abbreviation | HPMDA |
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| CAS Number | 2754-41-8 |
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| Molecular Formula | C10H8O6 |
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| Molecular Weight | 224.17 g/mol |
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| Appearance | White to almost white powder or crystal |
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| Purity | ≥99% |
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| Package | 1kg/bottle, 20kg/drum, or customized |
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| Molecular Structure |  |
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Key Properties
Alicyclic molecular structure enables low color, reduced charge-transfer interactions,
and high optical transparency in derived polymers
Improved solubility and processability compared with fully aromatic dianhydrides,
supporting solution-based film fabrication
Low moisture absorption contributes to dimensional stability and reliable dielectric behavior
Enhances toughness and flexibility of polyimide backbones while maintaining adequate thermal resistance
Key Applications of HPMDA
Optical and Transparent Polymer Systems:
Used in low-color and transparent polyimide films for optical components,
display substrates, optical fiber coatings, and dielectric layers where
high light transmittance and low haze are required.
Electronics and Microelectronics (Dielectric Modifier):
Utilized as a performance-modifying dianhydride in electronic-grade polyimides,
improving dielectric reliability, optical clarity, and moisture resistance
in flexible electronics and microelectronic substrates.
Explore polyimide dianhydrides for electronics and microelectronics .
Aerospace and Lightweight Engineering Applications:
Used in non-structural, lightweight, and dielectric polymer components
where transparency, flexibility, and thermal stability are simultaneously required.
Detailed COA / TDS / MSDS are available upon request.
Please Contact Us for more information.
