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Cyclobutane-1,2-dicarboxylic anhydride (CAS: 4462-96-8) - 98% Purity, Kilogram-Scale Supply

2026-07-21 09:29:24
Product Overview

Cyclobutane-1,2-dicarboxylic anhydride (CAS: 4462-96-8) is an alicyclic diacid anhydride featuring a unique structural profile. With its rigid cyclobutane four-membered ring backbone and highly reactive anhydride functional groups, this compound serves as a critical monomer in the synthesis of modern high-performance polyimide (PI) films, specialized epoxy curing agents, and heat-resistant optical materials. Additionally, it functions as an indispensable high-end building block in liquid crystal display (LCD) materials, pharmaceuticals, and agrochemical chemical synthesis.

Cyclobutane-1,2-dicarboxylic anhydride

Because four-membered ring structures are inherently prone to side reactions during synthesis and purification, high-purity, kilogram-scale suppliers are rare on the global market. Utilizing our mature directional synthesis processes and efficient vacuum fractional distillation technology, we have overcome these purification barriers. We proudly offer 98% high-purity Cyclobutane-1,2-dicarboxylic anhydride with stable, kilogram-scale (kg-scale) ready stock to seamlessly bridge the gap between your laboratory research and full industrial commercialization.
Core Advantages

  • High Purity (≥ 98.0%): Purified through precise localized refinement. Isomeric ratios and process impurities like free acids are strictly restricted, guaranteeing exceptionally high polymerization activity and molecular weight stability in macromolecular synthesis.

  • Stable Kilogram-Scale Supply: Backed by a robust supply chain and a standardized pilot-scale production line. We maintain regular kilogram-scale inventory, supporting flexible order capacities from hundreds of grams to continuous multi-kilogram batches.

  • Rigorous Batch Quality Control: Produced under strict quality management systems. Every shipment comes complete with a comprehensive analytical package including COA (Certificate of Analysis), GC/HPLC (Purity Analysis), and H-NMR spectra.

  • Moisture-Proof Airtight Packaging: To counteract the highly hygroscopic nature of acid anhydrides (which readily hydrolyze when exposed to moisture), products are sealed under a nitrogen blanket in pharmaceutical-grade airtight containers or vacuum-sealed double-layer PE and aluminum foil bags.

Technical Specifications

  • Chemical Name: Cyclobutane-1,2-dicarboxylic anhydride

  • CAS Registry Number: 4462-96-8

  • Molecular Formula: C₆H₆O₃

  • Molecular Weight: 126.11

  • Appearance: White to off-white crystals, powder, or low-melting solid (depending on ambient temperature).

  • Assay / Purity: ≥ 98.0% (GC)

  • Storage Conditions: Store at 2-8°C (or in a cool, dry place), tightly sealed, nitrogen-blanketed, and strictly protected from moisture.

  • Standard Packaging: 500g/bag, 1kg/aluminum foil bag, 5kg/fluorinated drum (Customized packaging available upon request).

Disclaimer
All chemical products sold by our company are intended solely for laboratory research, export, or industrial manufacturing R&D. They are not intended for use as food additives, daily cosmetic ingredients, or clinical drugs in humans.


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