Description

5,5-Bis(Bromomethyl)-2-(2,4,6-Tribromophenoxy)-1,3,2-Dioxaphosphorinane 2-Oxide is a highly brominated organophosphorus compound, valued for its exceptional efficacy as a reactive flame retardant. Its molecular structure allows it to be chemically incorporated into polymer backbones, providing durable and non-blooming flame retardancy. This product is essential for manufacturers in the polymer and plastics industries seeking to enhance the fire safety of high-performance materials.

Application

• As a reactive flame retardant in the synthesis of epoxy resins and unsaturated polyesters.
• Incorporation into thermosetting plastics for electrical and electronic applications (e.g., circuit boards, encapsulants).
• Use in the production of fire-resistant polyurethane foams for construction and insulation.
• Modification of engineering plastics to meet stringent UL94 V-0 and other fire safety standards.
• Potential intermediate for advanced flame retardant additives and synergists.
• Research and development of novel fire-safe polymer materials.

Basic Information

Item	Details
Product Name	5,5-Bis(Bromomethyl)-2-(2,4,6-Tribromophenoxy)-1,3,2-Dioxaphosphorinane 2-Oxide
CAS No.	38578-30-2
Molecular Formula	C12H12Br5O4P
Molecular Weight	722.61 g/mol
Synonyms	2,4,6-Tribromophenyl bis(bromomethyl) phosphonate; Tris-Brom Phenyl Phosphonate (TBPP); FR-1033; 1,3,2-Dioxaphosphorinane, 5,5-bis(bromomethyl)-2-(2,4,6-tribromophenoxy)-, 2-oxide; Brominated phenyl phosphonate; Reactive brominated flame retardant; Tris-Brom Phenyl Di(bromomethyl) Phosphonate
EINECS	Contact for details

Quality Control

Our production of 5,5-Bis(Bromomethyl)-2-(2,4,6-Tribromophenoxy)-1,3,2-Dioxaphosphorinane 2-Oxide adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, bromine content, and thermal stability. Certificates of Analysis (COA) detailing assay, impurity profile, and physical properties are provided to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	105 - 115 °C
Bromine Content	≥ 55.0 %
Loss on Drying	≤ 0.5 %

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