Description

Chlorendic Anhydride is a high-performance, halogenated organic acid anhydride widely recognized for its role in imparting flame retardancy and chemical resistance. This compound is a critical intermediate for synthesizing specialty polymers and additives, offering enhanced thermal stability and durability to the final products. It is essential for manufacturers in the plastics, coatings, and flame-retardant industries seeking to improve the safety and longevity of their materials.

Application

• Flame Retardant Production: A key raw material for manufacturing halogenated flame retardants used in plastics, textiles, and construction materials.
• Polyester Resins: Used as a curing agent and modifier to produce high-performance, flame-retardant unsaturated polyester resins for composites and laminates.
• Epoxy Resin Systems: Serves as a reactive intermediate to synthesize specialty epoxy resins with improved fire resistance and thermal properties for coatings and adhesives.
• Polyimide Synthesis: An important monomer for creating high-temperature, flame-retardant polyimide films and engineering plastics.
• Plasticizers: Used in the production of specialty plasticizers that provide flame retardancy to flexible PVC and other polymers.
• Chemical Intermediate: Employed in organic synthesis for pharmaceuticals, agrochemicals, and other fine chemicals requiring a hexachloronorbornene structure.

Basic Information

Product Name	Chlorendic Anhydride
CAS No.	115-27-5
Molecular Formula	C9H2Cl6O3
Molecular Weight	370.83 g/mol
Synonyms	1,4,5,6,7,7-Hexachlorobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic Anhydride; Hexachloroendomethylene Tetrahydrophthalic Anhydride; HET Anhydride; Chlorendic Acid Anhydride; 1,4,5,6,7,7-Hexachloro-5-norbornene-2,3-dicarboxylic Anhydride; HET Acid Anhydride; Chlorendic Anhydride, tech.; Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid, 1,4,5,6,7,7-hexachloro-, anhydride
EINECS	204-077-3

Quality Control

Our Chlorendic Anhydride is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, melting point, and impurity profiles. Our quality management system is designed to meet the rigorous demands of industrial and specialty chemical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials such as strong bases and amines. Recommended storage temperature is between 15°C and 25°C. The product is moisture-sensitive; keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	235 - 245 °C
Loss on Drying	≤ 0.5 %
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.