Description

3-Ethylheptyl 2,5-Dimethylheptyl Phthalate is a specialized high-molecular-weight phthalate ester plasticizer. This compound matters for its ability to impart excellent low-temperature flexibility and durability to polymer matrices, offering a tailored performance profile for demanding applications. It is primarily needed by formulators in the plastics and polymer industries seeking advanced plasticizers for PVC, synthetic rubbers, and specialty elastomers where volatility and migration resistance are critical.

Application

• Primary Plasticizer for PVC Compounds: Used in calendaring, extrusion, and molding processes to enhance flexibility and processability.
• Synthetic Rubber and Elastomer Formulations: Imparts low-temperature flexibility and improves the mechanical properties of nitrile rubber (NBR), polychloroprene, and other specialty elastomers.
• Wire and Cable Insulation: Provides long-term electrical insulation properties and resistance to extraction in demanding environments.
• Adhesives and Sealants: Acts as a permanent plasticizer to improve adhesion, cohesion, and low-temperature performance.
• Coated Fabrics and Automotive Interiors: Used in plastisols for automotive upholstery, dashboard coatings, and other interior components requiring consistent feel and fogging resistance.
• Specialty Polymer Blends: Employed as a compatibilizer and processing aid in complex polymer alloys and blends.

Basic Information

Product Name	3-Ethylheptyl 2,5-Dimethylheptyl Phthalate
CAS No.	97692-55-2
Molecular Formula	C₃₂H₅₄O₄
Molecular Weight	502.77 g/mol
Synonyms	Bis(3-ethylheptyl) 2,5-dimethylheptyl phthalate; 1,2-Benzenedicarboxylic acid, bis(3-ethylheptyl) 2,5-dimethylheptyl ester; Phthalic acid, bis(3-ethylheptyl) 2,5-dimethylheptyl ester; 3-Ethylheptyl 2,5-dimethylheptyl phthalate; Plasticizer 97692-55-2; High molecular weight phthalate ester; C32 phthalate plasticizer
EINECS	Contact for details

Quality Control

Our 3-Ethylheptyl 2,5-Dimethylheptyl Phthalate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and performance. Key parameters such as assay, color, acidity, and specific gravity are verified against stringent internal specifications. A Certificate of Analysis (COA) documenting these results is available for every shipment upon request, providing full traceability and quality assurance for your production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong alkalis and organic solvents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep containers 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%
Color (APHA)	≤ 50
Acidity (as Phthalic Acid)	≤ 0.01%
Water Content (KF)	≤ 0.05%
Specific Gravity (20/20°C)	0.970 - 0.980
Refractive Index (20°C)	1.483 - 1.488

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