Description

6-Dodecyl-1,3-Phenylene Diisocyanate is a specialized aromatic diisocyanate monomer featuring a long-chain dodecyl substituent. This unique structure provides a valuable combination of reactivity and hydrophobicity, making it a critical building block for high-performance polyurethane and polyurea systems. It is essential for formulators in the coatings, adhesives, sealants, and elastomers (CASE) industries seeking to enhance product flexibility, chemical resistance, and durability.

Application

• Hydrophobic Polyurethane Coatings: A key monomer for formulating advanced protective coatings with superior water and chemical resistance for marine, automotive, and industrial applications.
• High-Performance Adhesives & Sealants: Used to create flexible, durable adhesives and sealants with excellent adhesion to various substrates and enhanced weatherability.
• Specialty Elastomers: Serves as a chain extender or crosslinker in the production of elastomeric materials requiring a balance of toughness and low-temperature flexibility.
• Modified Polymer Systems: Employed to introduce long alkyl chains into polymer backbones, improving compatibility with oils, plasticizers, and other hydrophobic components.
• Surface Modification Agents: Utilized to graft isocyanate functionality onto surfaces or polymers, imparting specific surface properties and reactivity for further chemical attachment.

Basic Information

Product Name	6-Dodecyl-1,3-Phenylene Diisocyanate
CAS No.	93859-04-2
Molecular Formula	C20H28N2O2
Molecular Weight	328.45 g/mol
Synonyms	1,3-Diisocyanato-6-dodecylbenzene; 6-Dodecyl-m-phenylene Diisocyanate; m-Phenylene Diisocyanate, 6-Dodecyl Derivative; Dodecyl-m-phenylene Diisocyanate; Lauryl-m-phenylene Diisocyanate; 3,5-Diisocyanato-1-dodecylbenzene; 93859-04-2 (CAS)
EINECS	Contact for details

Quality Control

Our 6-Dodecyl-1,3-Phenylene Diisocyanate is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical techniques including HPLC, GC, and titration methods. Certificates of Analysis (COA) detailing purity, isocyanate content, and impurity profiles are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under a dry inert atmosphere (e.g., nitrogen or argon) to prevent reaction with atmospheric moisture and carbon dioxide, which can lead to polymerization or urea formation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (NCO Content)	≥ 98.0%
Purity (HPLC)	≥ 97.0%
Hydrolyzable Chloride	≤ 0.01%
Color (APHA)	≤ 50
Specific Gravity (20°C)	0.98 - 1.02
Viscosity (25°C)	Contact for details

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