Description

Diundecyl Phthalate is a high-molecular-weight phthalate ester plasticizer known for its excellent permanence and low volatility. This compound is valued for its ability to impart superior flexibility, durability, and low-temperature performance to polymer matrices. It is primarily utilized in the formulation of high-performance, specialty plastics and synthetic materials across several industrial sectors.

Application

• Primary plasticizer for high-temperature PVC (polyvinyl chloride) wire and cable insulation.
• Specialty plasticizer for synthetic rubbers and elastomers requiring enhanced low-temperature flexibility.
• Key component in the production of high-durability, low-volatility automotive interior parts and under-hood components.
• Formulation of adhesives, sealants, and coatings where long-term plasticizer retention is critical.
• Used in the manufacture of specialty films and sheeting with demanding performance specifications.
• Plasticizer for nitrocellulose and other specialty lacquers and surface coatings.

Basic Information

Product Name	Diundecyl Phthalate
CAS No.	3648-20-2
Molecular Formula	C30H50O4
Molecular Weight	474.72 g/mol
Synonyms	1,2-Benzenedicarboxylic acid, diundecyl ester; Diundecyl phthalate; DUP; Undecyl phthalate; Phthalic acid, diundecyl ester; Bis(undecyl) phthalate; Jayflex L11P; Palatinol 11P
EINECS	222-884-1

Quality Control

Our Diundecyl Phthalate is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, identity, and key parameters is provided with every 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). Keep container tightly sealed when not in use to minimize moisture absorption and contamination.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0%
Acidity (as Phthalic Acid)	≤ 0.01%
Water Content (KF)	≤ 0.05%
Color (APHA)	≤ 30
Specific Gravity (20/20°C)	0.955 - 0.965
Refractive Index (20°C)	1.482 - 1.486

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