Description

3-Ethylheptyl 6-Methyloctyl Phthalate is a specialized high-molecular-weight phthalate ester plasticizer. This compound is valued for its excellent compatibility with a wide range of polymers, providing enhanced flexibility, durability, and low-temperature performance. It is primarily sought by manufacturers in the polymer and specialty chemical industries for formulating high-performance PVC, synthetic rubbers, and other elastomeric materials where superior permanence and processing characteristics are required.

Application

• Primary plasticizer for flexible Polyvinyl Chloride (PVC) compounds in wire & cable insulation, flooring, and automotive interiors.
• Performance additive in synthetic rubber formulations to improve elasticity and processability.
• Key component in specialty polymer gels and sealants requiring low volatility and migration resistance.
• Plasticizer for adhesives and coatings to enhance film flexibility and adhesion.
• Used in the production of specialty films and sheets that demand high clarity and durability.
• Formulation agent in caulks and mastics to maintain long-term pliability.

Basic Information

Product Name	3-Ethylheptyl 6-Methyloctyl Phthalate
CAS No.	85851-80-5
Molecular Formula	C34H58O4
Molecular Weight	530.82 g/mol
Synonyms	1,2-Benzenedicarboxylic acid, bis(3-ethylheptyl) ester; Bis(3-ethylheptyl) phthalate; DI(3-ethylheptyl) phthalate; Phthalic acid, bis(3-ethylheptyl) ester; 3-Ethylheptyl phthalate; 6-Methyloctyl phthalate; Plasticizer EHMP; DEHP (C9) isomer
EINECS	Contact for details

Quality Control

Our 3-Ethylheptyl 6-Methyloctyl Phthalate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance characteristics. Certificates of Analysis (COA) documenting key parameters such as assay, color, acidity, and specific gravity 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 at room temperature (15-25°C). Keep away from strong oxidizing agents, heat, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous 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)	0.970 - 0.980
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.