Description

2-Isocyanato-[1,3,2]-dioxaphospholane is a highly reactive, bifunctional monomer containing both an isocyanate group and a cyclic phosphite ester. This unique structure makes it a critical building block for synthesizing advanced polymers and functional materials with tailored properties. It is primarily used by R&D chemists and process engineers in the polymer, pharmaceutical, and specialty chemical industries to create novel flame retardants, stabilizers, and bioactive conjugates.

Application

• Flame Retardant Precursor: A key intermediate for synthesizing phosphorus-containing flame retardants and intumescent coatings for plastics, textiles, and construction materials.
• Polymer Modification: Used to introduce phosphorus and reactive isocyanate groups into polymer backbones (e.g., polyurethanes, polyesters, epoxies) to enhance flame resistance, adhesion, and cross-linking density.
• Stabilizer Synthesis: Serves as a starting material for producing specialized antioxidants and thermal stabilizers for high-performance polymers and lubricants.
• Pharmaceutical Intermediates: Employed in the research and development of prodrugs and bioactive molecules where the phospholane moiety can be utilized for targeted delivery or activity.
• Surface Functionalization Agent: Used to modify the surface of materials like silica or metals, creating a reactive interface for further chemical grafting.
• Cross-linking Agent: Functions as a cross-linker in specialty resin formulations, contributing to improved thermal and mechanical properties in the cured network.

Basic Information

Product Name	2-Isocyanato-[1,3,2]-dioxaphospholane
CAS No.	17419-12-4
Molecular Formula	C3H4NO3P
Molecular Weight	133.04 g/mol
Synonyms	2-Isocyanato-1,3,2-dioxaphospholane; 1,3,2-Dioxaphospholane, 2-isocyanato-; 2-Isocyanato-2-hydro-1,3,2-dioxaphosphole; Phospholane isocyanate; Isocyanatophospholane; Cyclic phosphite isocyanate; 2-Isocyanato-1,3,2-dioxaphosphorinane (related cyclic analog); Contact for additional trade names.
EINECS	Contact for details

Quality Control

Every batch of 2-Isocyanato-[1,3,2]-dioxaphospholane is produced and tested under stringent quality management protocols. Our products undergo rigorous quality testing, including chromatographic purity analysis and functional group verification, to ensure compliance with exacting R&D and industrial standards. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile and hygroscopic (moisture-sensitive) nature, this material must be stored under a dry, inert atmosphere (e.g., nitrogen or argon) in a cool, well-ventilated area. Recommended storage temperature is 2-8°C (refrigerated) for long-term stability. Allow the sealed container to reach ambient temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Free Isocyanate (NCO) Content	Contact for details

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