Description

1H-Isoindole-1,3(2H)-Dione, 2-Octadecyl- is a high-purity, long-chain alkyl-substituted isoindole-1,3-dione derivative, also known as N-Octadecylphthalimide. This compound is valued for its role as a versatile chemical intermediate and functional additive, offering unique properties derived from its hydrophobic alkyl chain and imide functional group. It is primarily utilized by manufacturers in the polymer, lubricant, and specialty chemical industries seeking to modify material characteristics such as compatibility, surface activity, and thermal stability.

Application

• Polymer Additive: Acts as a processing aid, internal lubricant, or anti-static agent in plastics and synthetic resins.
• Lubricant & Grease Formulation: Serves as a friction modifier or thickening agent in high-performance lubricants and greases.
• Surface Modification Agent: Used to impart hydrophobic properties to surfaces or particles in coatings and composites.
• Chemical Intermediate: A key building block for synthesizing more complex molecules, including surfactants and corrosion inhibitors.
• Research & Development: Employed in academic and industrial R&D for studying self-assembly, crystal engineering, and material science.

Basic Information

Item	Detail
Product Name	1H-Isoindole-1,3(2H)-Dione, 2-Octadecyl-
CAS No.	20332-12-1
Molecular Formula	C₂₆H₄₁NO₂
Molecular Weight	399.61 g/mol
Synonyms	N-Octadecylphthalimide; 2-Octadecyl-1H-isoindole-1,3(2H)-dione; Octadecylphthalimide; N-Stearylphthalimide; Phthalimide, N-octadecyl-; N-Octadecyl-1,3-dihydro-1,3-dioxo-2H-isoindole-2-carboxamide (alternative); N-C18-Phthalimide
EINECS	Contact for details

Quality Control

Our 1H-Isoindole-1,3(2H)-Dione, 2-Octadecyl- is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including identity confirmation by FT-IR, purity assessment by HPLC, and determination of key physical parameters to ensure consistent quality and compliance with customer specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

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 and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	95 - 100 °C
Loss on Drying	≤ 0.5%

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