Description

1,4-Diisocyanobutane is a versatile aliphatic diisocyanate monomer essential for the synthesis of high-performance polyurethanes and polyureas. Its linear butane chain structure provides a balance of reactivity and flexibility, making it a critical building block for materials requiring specific mechanical and chemical resistance properties. This compound is primarily utilized by R&D chemists and industrial manufacturers in the polymer, coatings, and specialty chemical sectors to develop advanced elastomers, adhesives, and coatings with tailored characteristics.

Application

• Polyurethane Synthesis: A key monomer for producing linear and cross-linked polyurethane elastomers, foams, and coatings.
• Polyurea Coatings: Used in the formulation of fast-curing, durable, and chemically resistant polyurea protective coatings for industrial and automotive applications.
• Adhesives & Sealants: Serves as a cross-linking agent in high-performance adhesive and sealant formulations.
• Specialty Polymers: Employed in the research and production of specialized polymers, including thermoplastic polyurethanes (TPUs) and polymer dispersions.
• Chemical Intermediate: Acts as a precursor in organic synthesis for pharmaceuticals, agrochemicals, and other fine chemicals.
• Material Modification: Used to modify the properties of existing polymers, enhancing their toughness, weatherability, or adhesion.

Basic Information

Product Name	1,4-Diisocyanobutane
CAS No.	929-25-9
Molecular Formula	C6H8N2O2
Molecular Weight	140.14 g/mol
Synonyms	Butane-1,4-diisocyanate; Tetramethylene Diisocyanate; 1,4-Butylene Diisocyanate; BDI; Tetramethylene-1,4-diisocyanate; 1,4-Butane Diisocyanate; NSC 60545; 1,4-Diisocyanatobutane
EINECS	213-192-0

Quality Control

Our 1,4-Diisocyanobutane is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC, HPLC, and titration to confirm identity, assay, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all specifications is 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, and well-ventilated area at temperatures between 2°C and 8°C (or as specified on the label). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent degradation from moisture ingress.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Color (APHA)	≤ 50
Hydrolyzable Chloride	≤ 0.1%
Water Content (KF)	≤ 0.05%

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