Description

Polycarbodiimide CAS NO 151-51-9 is a versatile chemical compound belonging to the carbodiimide class, widely recognized for its role as a zero-length crosslinking and coupling agent. Its primary commercial value lies in its ability to efficiently mediate the formation of amide bonds, making it a critical reagent in polymer synthesis and material science. This product is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and advanced polymer industries seeking to enhance material properties or create novel compounds.

Application

• Polymer Modification & Crosslinking: Used as a crosslinker for carboxyl-containing polymers like polyurethanes and polyacrylics to improve mechanical strength, chemical resistance, and thermal stability.
• Peptide & Protein Synthesis: Serves as a potent coupling agent (e.g., as an alternative to DCC) for activating carboxylic acids during solid-phase and solution-phase peptide synthesis.
• Adhesive & Coating Formulations: Incorporated into high-performance adhesives and coatings to promote curing and enhance durability, water resistance, and adhesion to substrates.
• Bioconjugation & Diagnostic Reagents: Facilitates the conjugation of proteins, antibodies, or other biomolecules with labels, drugs, or solid supports for diagnostic and therapeutic applications.
• Stabilizer for Polyesters & Polyurethanes: Acts as an effective hydrolytic stabilizer, scavenging carboxylic acid end groups in engineering plastics to prevent degradation and extend product lifespan.
• Chemical Intermediate: Employed in organic synthesis for the preparation of ureas, guanidines, and other nitrogen-containing heterocycles.

Basic Information

Product Name	Polycarbodiimide
CAS No.	151-51-9
Molecular Formula	C3H5N3
Molecular Weight	83.09 g/mol
Synonyms	1,3-Diisopropylcarbodiimide; DIC; N,N'-Diisopropylcarbodiimide; Carbonyldiisopropylimide; Diisopropylcarbodiimide; Isopropylcarbodiimide; DIPC; N,N'-Diisopropylcarbodiimide
EINECS	205-787-4

Quality Control

Our Polycarbodiimide is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your specifications and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile and hygroscopic (moisture-sensitive) nature, store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). For long-term storage, consider using sealed containers under an inert atmosphere such as nitrogen or argon to minimize moisture uptake and oxidation. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	0.80 - 0.85
Refractive Index (n20D)	1.450 - 1.460

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