Description

1,4-Diisocyanatobutane CAS NO 4538-37-8 is a linear aliphatic diisocyanate monomer, a key building block in polymer chemistry. This compound is essential for creating high-performance polyurethane and polyurea materials with specific mechanical and chemical resistance properties. It is primarily required by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced material research and development.

Application

• Polyurethane Synthesis: Core monomer for producing specialty polyurethane resins, coatings, and adhesives requiring light color and resistance to yellowing.
• Elastomer Manufacturing: Used in the formulation of high-performance elastomers for automotive parts, industrial rollers, and seals.
• Coating Systems: Key component in industrial and protective coatings that demand excellent flexibility, abrasion resistance, and chemical stability.
• Adhesive & Sealant Formulation: Imparts strong bonding properties and durability in structural adhesives and high-performance sealants.
• Polyurea Production: Reactant for creating fast-curing polyurea coatings and linings with superior mechanical properties.
• Cross-linking Agent: Serves as an effective cross-linker for polymers containing hydroxyl or amine functional groups.
• Chemical Intermediate: Used in organic synthesis for pharmaceuticals, agrochemicals, and other specialty chemicals.
• Material Science R&D: Employed in research laboratories for developing novel polymers with tailored properties.

Basic Information

Product Name	1,4-Diisocyanatobutane
CAS No.	4538-37-8
Molecular Formula	C6H8N2O2
Molecular Weight	140.14 g/mol
Synonyms	Butane-1,4-diisocyanate; Tetramethylene Diisocyanate; 1,4-Butylene Diisocyanate; BDI; 1,4-Butane Diisocyanate; Tetramethylene-1,4-diisocyanate; NSC 60545; 1,4-Diisocyanobutane
EINECS	224-882-5

Quality Control

Our 1,4-Diisocyanatobutane is produced under stringent quality management systems. Every batch undergoes rigorous analytical testing, including assay by titration and impurity profiling, to ensure it meets precise specifications for industrial and research applications. A Certificate of Analysis (COA) detailing purity, moisture content, and other critical parameters is provided with each shipment to guarantee traceability and consistency.

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) to prevent reaction with atmospheric moisture. Isolate from strong bases, acids, alcohols, amines, and water.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Color (APHA)	≤ 50
Water Content (Karl Fischer)	≤ 0.05 %
Hydrolyzable Chloride	≤ 0.01 %
Specific Gravity (20°C)	1.05 - 1.10

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