Description

Undecyl Dodecyl Phthalate CAS NO 68515-47-9 is a high-molecular-weight phthalate ester plasticizer, specifically a C11-C13 branched alkyl phthalate. This compound is valued for its excellent permanence, low volatility, and superior performance in demanding polymer applications. It is primarily needed by manufacturers in the plastics and polymer industries seeking durable, high-performance plasticizers for specialty products.

Application

• Primary plasticizer for high-temperature PVC (polyvinyl chloride) applications, including wire and cable insulation.
• Key component in the formulation of specialty adhesives and sealants requiring enhanced flexibility and longevity.
• Plasticizer for synthetic rubbers and elastomers to improve low-temperature flexibility and processing characteristics.
• Used in the production of coated fabrics and automotive interior trim where low fogging and migration are critical.
• Formulation additive for plastisols used in rotational molding, slush molding, and screen printing inks.
• Functional fluid in specialty lubricants and hydraulic fluids where chemical stability is required.

Basic Information

Product Name	Undecyl Dodecyl Phthalate
CAS No.	68515-47-9
Molecular Formula	C31H52O4
Molecular Weight	488.75 g/mol
Synonyms	1,2-Benzenedicarboxylic acid, diundecyl ester; Diundecyl phthalate; DUP; Phthalic acid, diundecyl ester; Jayflex L11P; Palatinol 11P; Unimoll 66 M; Vestinol DZ; DINP (C11) (Note: Often grouped with similar C11-C13 phthalates)
EINECS	Contact for details

Quality Control

Our Undecyl Dodecyl Phthalate undergoes rigorous quality testing to ensure compliance with industry standards for plasticizers. Each batch is analyzed to confirm identity, purity, and key performance characteristics such as color, acidity, and ester content. Certificates of Analysis (COA) documenting these parameters are available upon request to support your quality assurance protocols.

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 15-25°C. 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 to standard
Assay (GC)	≥ 99.0%
Color (APHA)	≤ 30
Acidity (as Phthalic Acid)	≤ 0.01%
Water Content (KF)	≤ 0.05%
Specific Gravity (20/20°C)	0.952 - 0.962
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.