Description

(1R,2S,5R,6R,9R,10S)-Rel-1,2,5,6,9,10-Hexabromocyclododecane is a specific stereoisomer of hexabromocyclododecane (HBCD), a high-performance brominated flame retardant. This compound is valued for its exceptional thermal stability and efficacy in inhibiting the ignition and spread of flames in polymer matrices. It is primarily required by manufacturers in the construction, textiles, and electronics industries for producing fire-safe expanded polystyrene (EPS) and extruded polystyrene (XPS) foam insulation, as well as other engineered polymers.

Application

• Flame Retardant for Expanded Polystyrene (EPS) Foam: A critical additive for insulation boards and packaging materials used in building and construction.
• Flame Retardant for Extruded Polystyrene (XPS) Foam: Used in high-performance insulation for roofing, walls, and below-grade applications.
• Textile Back-Coating: Imparts flame resistance to upholstery fabrics, curtains, and other interior textiles.
• High-Impact Polystyrene (HIPS) Formulations: Enhances fire safety in electronic equipment housings and appliance components.
• Polyolefin Systems: Used in specific wire and cable coating applications requiring brominated flame retardancy.
• Adhesives and Sealants: Incorporated to meet fire safety standards in construction adhesives and industrial sealants.

Basic Information

Product Name	(1R,2S,5R,6R,9R,10S)-Rel-1,2,5,6,9,10-Hexabromocyclododecane
CAS No.	134237-51-7
Molecular Formula	C₁₂H₁₂Br₆
Molecular Weight	641.73 g/mol
Synonyms	HBCD; Hexabromocyclododecane; 1,2,5,6,9,10-Hexabromocyclododecane; NSC 93387; Cyclododecane, 1,2,5,6,9,10-hexabromo-; γ-Hexabromocyclododecane (stereoisomer mixture); Flame retardant HBCD; Cyclododecane, hexabromo-
EINECS	Contact for details

Quality Control

Our (1R,2S,5R,6R,9R,10S)-Rel-1,2,5,6,9,10-Hexabromocyclododecane is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, stereochemical composition, and performance as a flame retardant. Certificates of Analysis (COA) detailing key specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Ensure the storage area is separate from strong oxidizers and foodstuffs.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Melting Point	175 - 195 °C
Loss on Drying	≤ 0.5 %
Bromine Content	≥ 74.0 %

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