Description

Diisobutyl Fumarate is a diester of fumaric acid, widely recognized for its role as a reactive diluent and plasticizer in polymer chemistry. This compound is valued for its ability to modify resin properties, enhancing flexibility and processability while maintaining performance. It is a critical raw material for manufacturers in the coatings, adhesives, and specialty polymer industries seeking to optimize formulation characteristics.

Application

• Reactive Diluent in Unsaturated Polyester Resins (UPR): Modifies viscosity for improved handling and application in fiberglass-reinforced plastics (FRP) and gel coats.
• Plasticizer and Modifier: Imparts flexibility and impact resistance to coatings, adhesives, and sealants.
• Crosslinking Agent: Participates in polymerization reactions to form durable, cross-linked polymer networks.
• Intermediate for Chemical Synthesis: Used in the production of specialty chemicals, including other esters and functional monomers.
• Component in Specialty Adhesives: Enhances bond strength and durability in industrial adhesive formulations.
• Additive for Ink and Coating Systems: Improves film formation, gloss, and weatherability.

Basic Information

Product Name	Diisobutyl Fumarate
CAS No.	7283-69-4
Molecular Formula	C12H20O4
Molecular Weight	228.29 g/mol
Synonyms	Diisobutyl (E)-Butenedioate; Fumaric Acid Diisobutyl Ester; 2-Methylpropyl (2E)-2-Butenedioate; Bis(2-methylpropyl) Fumarate; Diisobutyl trans-1,2-Ethylenedicarboxylate; DIBF
EINECS	230-704-5

Quality Control

Our Diisobutyl Fumarate is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and performance. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F).

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Acidity (as Fumaric Acid)	≤ 0.1%
Water Content (KF)	≤ 0.1%
Specific Gravity (20°C)	0.980 - 0.995
Refractive Index (20°C)	1.440 - 1.450

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