Description

1-Propyne, 3-Isocyanato- is a specialized alkyne-functional isocyanate monomer, a key building block for advanced polymer synthesis. This compound matters for its unique reactivity, enabling the introduction of both isocyanate and alkyne groups into polymer backbones for cross-linking and post-polymerization modification. Industries requiring high-performance coatings, adhesives, and specialty polymers with tailored thermal or mechanical properties are the primary users of this chemical.

Application

• Synthesis of Specialty Polyurethanes and Polyureas: Acts as a reactive monomer to create polymers with enhanced hardness, chemical resistance, and thermal stability for high-performance coatings and elastomers.
• Cross-linking Agent for Polymers: Utilized to introduce cross-links via the isocyanate and alkyne functionalities, improving the durability and dimensional stability of final products.
• Click Chemistry Substrate: The terminal alkyne group is ideal for copper-catalyzed azide-alkyne cycloaddition (CuAAC) reactions, facilitating the modular construction of complex macromolecular architectures.
• Surface Modification and Functionalization: Used to graft specific functional groups onto material surfaces (e.g., glass, metals, polymers) to alter adhesion, wettability, or biocompatibility.
• Pharmaceutical Intermediate: Serves as a precursor in the synthesis of more complex molecules for drug discovery and development, leveraging its bifunctional reactivity.
• Adhesive and Sealant Formulations: Incorporated into formulations to improve cure speed, adhesion strength, and environmental resistance.

Basic Information

Product Name	1-Propyne, 3-Isocyanato-
CAS No.	56620-43-0
Molecular Formula	C₄H₃NO
Molecular Weight	81.07 g/mol
Synonyms	3-Isocyanato-1-propyne; Propargyl isocyanate; 1-Propyn-3-yl isocyanate; Isocyanic acid propargyl ester; 3-Isocyanatopropyne; Prop-2-yn-1-yl isocyanate; 2-Propynyl isocyanate; Propargyl isocyanat
EINECS	Contact for details

Quality Control

Our 1-Propyne, 3-Isocyanato- is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including assay and impurity profiling by GC and/or HPLC, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and safety parameters is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 2°C and 8°C (refrigerated) to maximize stability. This product is hygroscopic (moisture-sensitive) and must be handled under a dry inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and polymerization. Keep away from heat, sparks, open flames, and incompatible materials such as alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%

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