Description

9-Stearyl-9-Phosphabicyclo[3.3.1]Nonane is a sterically hindered organophosphorus compound, specifically a phosphabicyclononane derivative with a long-chain stearyl substituent. This unique molecular architecture provides exceptional thermal stability and low volatility, making it a valuable intermediate and performance additive. It is primarily utilized in the synthesis of advanced materials and as a ligand or catalyst component in specialized chemical processes. Industries involved in polymer stabilization, flame retardancy, and high-value specialty chemical manufacturing are key users of this compound.

Application

• As a specialized ligand in transition metal catalysis for fine chemical synthesis.
• As a thermal stabilizer and antioxidant precursor in high-performance polymers and engineering plastics.
• As a key chemical intermediate in the synthesis of novel organophosphorus flame retardants.
• In lubricant and grease formulations as an extreme pressure and anti-wear additive.
• For surface modification of nanoparticles and inorganic fillers to improve polymer composite compatibility.
• In research and development of new phosphine-based materials for electronic and optical applications.

Basic Information

Product Name	9-Stearyl-9-Phosphabicyclo[3.3.1]Nonane
CAS No.	99886-25-6
Molecular Formula	C₂₅H₄₉P
Molecular Weight	380.63 g/mol
Synonyms	9-Octadecyl-9-phosphabicyclo[3.3.1]nonane; Stearylphosphabicyclononane; 9-Phosphabicyclo[3.3.1]nonane, 9-octadecyl-; Phosphorus, (9-octadecylbicyclo[3.3.1]non-9-yl)-; P-Stearyl-9-phosphabicyclo[3.3.1]nonane
EINECS	Contact for details

Quality Control

Our 9-Stearyl-9-Phosphabicyclo[3.3.1]Nonane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, melting point, and impurity profile. Our quality commitment supports applications requiring reliable and traceable high-purity intermediates.

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 strong oxidizing agents. For long-term storage, consider an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%

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