Description

Propanoic Acid, 2-Isocyanato-, Methyl Ester (9Ci) is a specialized isocyanate ester monomer, a key building block in the synthesis of advanced polymers and coatings. This compound matters for its high reactivity, enabling the formation of durable polyurethane and polyurea linkages with superior chemical and mechanical properties. It is primarily needed by manufacturers in the specialty chemical, advanced materials, and high-performance coatings industries for creating custom resins, adhesives, and elastomers.

Application

• Polymer Synthesis: A critical monomer for producing custom polyurethanes and polyureas with tailored hardness, flexibility, and chemical resistance.
• High-Performance Coatings: Used in formulating industrial, automotive, and marine coatings that require exceptional durability, gloss retention, and weatherability.
• Specialty Adhesives & Sealants: Imparts strong bonding strength and flexibility in high-demand adhesive formulations for construction, aerospace, and automotive assembly.
• Elastomer Production: Serves as a cross-linking agent in the manufacture of specialty elastomers for gaskets, seals, and vibration-damping components.
• Chemical Intermediate: Acts as a versatile precursor in organic synthesis for pharmaceuticals, agrochemicals, and other fine chemicals requiring isocyanate functionality.
• Composite Materials: Incorporated into resin systems for fiber-reinforced plastics (FRP) and other composite materials to enhance interfacial adhesion and matrix properties.

Basic Information

Product Name	Propanoic Acid, 2-Isocyanato-, Methyl Ester (9Ci)
CAS No.	30293-83-5
Molecular Formula	C5H7NO3
Molecular Weight	129.11 g/mol
Synonyms	2-Isocyanatopropionic Acid Methyl Ester; Methyl 2-Isocyanatopropionate; Methyl 2-Isocyanatopropanoate; 2-Isocyanato-2-methylpropanoic Acid Methyl Ester; Methyl α-Isocyanatopropionate; Propanoic acid, 2-isocyanato-, methyl ester; Isocyanic acid, (1-methoxy-1-oxopropan-2-yl) ester
EINECS	Contact for details

Quality Control

Our Propanoic Acid, 2-Isocyanato-, Methyl Ester (9Ci) is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including assay, purity profiling, and impurity quantification, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Color (APHA)	≤ 50
Water Content (KF)	≤ 0.1%
Free NCO Content	Contact for details
Specific Gravity (20°C)	Contact for details

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