Description

2,5-Dimethylheptyl Nonyl Phthalate is a specialized high-molecular-weight phthalate ester plasticizer. This compound matters for its ability to impart excellent low-temperature flexibility and permanence to polymer matrices, making it a valuable performance additive. It is primarily needed by formulators in the plastics and polymer industries seeking to enhance the durability and processing characteristics of sensitive materials.

Application

• Primary plasticizer for polyvinyl chloride (PVC) and other vinyl polymers.
• Enhances flexibility and cold-weather performance in PVC films, cables, and synthetic leather.
• Used in specialty adhesives and sealants to improve elasticity and adhesion.
• Formulation component for high-performance synthetic lubricants and functional fluids.
• Plasticizing agent for nitrocellulose and other cellulose-based coatings.
• Additive in polymer processing to improve flow properties and reduce processing temperatures.

Basic Information

Product Name	2,5-Dimethylheptyl Nonyl Phthalate
CAS No.	85391-52-2
Molecular Formula	C26H42O4
Molecular Weight	418.61 g/mol
Synonyms	Nonyl 2,5-dimethylheptyl phthalate; 1,2-Benzenedicarboxylic acid, nonyl 2,5-dimethylheptyl ester; Phthalic acid, nonyl 2,5-dimethylheptyl ester; DINP isomer; C26 phthalate ester; Plasticizer DINP (mixed isomer reference); High molecular weight phthalate
EINECS	Contact for details

Quality Control

Our 2,5-Dimethylheptyl Nonyl Phthalate is manufactured under a rigorous quality management system. Each batch undergoes comprehensive analytical testing to ensure consistency and meets agreed-upon specifications. Certificates of Analysis (COA) documenting purity, identity, and key physical properties 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 incompatible materials such as strong acids and oxidizing agents. 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 viscous liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.5%
Acidity (as Phthalic Acid)	≤ 0.01%
Water Content (KF)	≤ 0.05%
Color (APHA)	≤ 30
Refractive Index (20°C)	1.483 - 1.487
Density (20°C)	0.970 - 0.976 g/mL

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