Description

4-Methyloctyl 6-Methyloctyl Phthalate is a specialized high-molecular-weight phthalate ester plasticizer, recognized by CAS NO 85851-78-1. This compound is valued for its excellent permanence and low volatility, providing durable flexibility and performance stability in demanding polymer formulations. It is primarily required by manufacturers in the plastics and polymer industries seeking advanced plasticizers for high-performance applications.

Application

• Primary plasticizer for high-temperature PVC (polyvinyl chloride) applications.
• Key component in specialty polymer formulations requiring low migration and low volatility.
• Used in the production of high-performance wire and cable insulation.
• Plasticizer for synthetic rubbers and elastomers to enhance flexibility and durability.
• Formulation additive in specialty adhesives and sealants for improved performance.
• Used in the manufacture of coated fabrics and automotive interior components.
• Potential additive in specialty coatings and inks requiring plasticizing agents.

Basic Information

Product Name	4-Methyloctyl 6-Methyloctyl Phthalate
CAS No.	85851-78-1
Molecular Formula	C26H42O4
Molecular Weight	418.61 g/mol
Synonyms	1,2-Benzenedicarboxylic acid, bis(6-methyloctyl) ester, mixed isomers; Bis(6-methyloctyl) phthalate; Di(6-methyloctyl) phthalate; Phthalic acid, bis(6-methyloctyl) ester; DINP isomer; Plasticizer DINP (related isomer); High molecular weight phthalate ester
EINECS	Contact for details

Quality Control

Our 4-Methyloctyl 6-Methyloctyl Phthalate is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and compliance with relevant industry specifications. Certificates of Analysis (COA) documenting key parameters such as assay, color, acidity, and specific gravity are available upon request.

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. 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%
Color (APHA)	≤ 50
Acidity (as Phthalic Acid)	≤ 0.01%
Water Content (KF)	≤ 0.1%
Specific Gravity (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.