Description

Diundecyl Phthalate, Branched And Linear is a high-molecular-weight phthalate ester plasticizer known for its excellent permanence and low volatility. This compound is critical for formulating durable, flexible materials that require long-term performance under demanding conditions. It is primarily needed by manufacturers in the polymer, specialty chemical, and industrial lubricant sectors seeking superior plasticizing efficiency and thermal stability.

Application

• Primary Plasticizer for high-performance PVC, synthetic rubbers, and other polymers requiring low migration and extraction.
• Wire and Cable Insulation formulations where excellent electrical properties and long-term flexibility are paramount.
• Automotive Interior Components such as dashboards and upholstery, providing durability and resistance to fogging.
• Specialty Adhesives and Sealants, enhancing flexibility and adhesion over a wide temperature range.
• Industrial Lubricant Additive, improving viscosity index and lubricity in synthetic lubricants.
• Coating and Film Applications, contributing to weatherability and reduced brittleness in finished products.

Basic Information

Product Name	Diundecyl Phthalate, Branched And Linear
CAS No.	85507-79-5
Molecular Formula	C30H50O4
Molecular Weight	474.72 g/mol
Synonyms	DUP; Diundecyl phthalate; 1,2-Benzenedicarboxylic acid, diundecyl ester; Phthalic acid, diundecyl ester; Jayflex DUP; Palatinol DUP; Unimoll 66; Vestinol DZ
EINECS	287-456-2

Quality Control

Our Diundecyl Phthalate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, color, and physical properties. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong acids and organic solvents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to minimize moisture absorption and contamination.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0%
Color (APHA)	≤ 30
Acidity (as Phthalic Acid)	≤ 0.01%
Water Content (KF)	≤ 0.05%
Specific Gravity (20/20°C)	0.960 - 0.970
Refractive Index (20°C)	1.483 - 1.487

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