Description

4-Methyloctyl Nonyl 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 to finished products. It is primarily utilized in the formulation of high-performance PVC and other polymer systems where superior permanence and processing characteristics are required. The CAS number for this substance is 85391-53-3.

Application

• Primary plasticizer for flexible Polyvinyl Chloride (PVC) compounds in wire & cable insulation and jacketing.
• Key component in the production of flexible films, sheets, and calendered goods for industrial and consumer applications.
• Formulation of synthetic leather, coated fabrics, and tarpaulins requiring long-term flexibility and weatherability.
• Improving the low-temperature flexibility and elongation of polymer sealants, adhesives, and caulks.
• As a processing aid and secondary plasticizer in rubber compounds and specialty elastomers.
• Used in the manufacture of gaskets, hoses, and other molded technical goods from various polymer bases.

Basic Information

Product Name	4-Methyloctyl Nonyl Phthalate
CAS No.	85391-53-3
Molecular Formula	C26H42O4
Molecular Weight	418.61 g/mol
Synonyms	1,2-Benzenedicarboxylic acid, 4-methyloctyl nonyl ester; Nonyl 4-methyloctyl phthalate; DINP isomer (mixed); Phthalic acid, nonyl 4-methyloctyl ester; Plasticizer 4-MONP; High molecular weight phthalate ester; C26 Phthalate Ester
EINECS	Contact for details

Quality Control

Our 4-Methyloctyl Nonyl Phthalate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure consistent purity, performance, and compliance with relevant industry specifications. A detailed Certificate of Analysis (COA) documenting key parameters such as assay, color, acidity, and specific gravity is provided with each shipment to guarantee product integrity.

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 bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). 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 standard
Assay (GC)	≥ 98.5%
Color (APHA)	≤ 50
Acidity (as Phthalic Acid)	≤ 0.01%
Water Content (KF)	≤ 0.1%
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.