Description

4-(Nonyloxycarbonyl)-1,2-Benzenedicarboxylic Anhydride is a specialized organic intermediate featuring a long-chain alkyl ester group attached to a phthalic anhydride core. This unique structure makes it a valuable building block for modifying polymer properties, particularly for enhancing hydrophobicity and plasticizing effects. It is primarily sought by R&D chemists and process engineers in the polymer and specialty chemical industries for synthesizing advanced materials, including plasticizers, epoxy curing agents, and high-performance resins.

Application

• Polymer Modification: Key intermediate for synthesizing novel plasticizers and modifiers to improve the flexibility and processing of PVC and other polymers.
• Epoxy Resin Systems: Used as a curing agent or hardener component to impart specific mechanical and thermal properties to epoxy formulations.
• Specialty Polyesters & Alkyd Resins: Serves as a monomer to introduce long aliphatic chains, enhancing solubility, hydrophobicity, and weatherability in resin coatings.
• Liquid Crystal Polymers (LCPs): Potential monomer for creating side-chain liquid crystalline polymers with tailored mesogenic properties.
• Organic Synthesis Intermediate: Valuable precursor in pharmaceutical and agrochemical research for constructing complex molecules with specific ester functionalities.
• Adhesive & Sealant Formulations: Imparts improved adhesion and low-temperature performance in specialty adhesive systems.

Basic Information

Product Name	4-(Nonyloxycarbonyl)-1,2-Benzenedicarboxylic Anhydride
CAS No.	33975-30-3
Molecular Formula	C19H24O5
Molecular Weight	332.39 g/mol
Synonyms	4-(Nonyloxycarbonyl)phthalic Anhydride; 4-Carboxynonyl Phthalic Anhydride; 1,2-Benzenedicarboxylic Anhydride, 4-(nonyloxycarbonyl)-; Nonyl Ester of 4-Carboxyphthalic Anhydride; 4-(n-Nonyloxycarbonyl)phthalic Anhydride; PNPA; Phthalic Anhydride, 4-(nonyloxycarbonyl)- derivative
EINECS	Contact for details

Quality Control

Every batch of 4-(Nonyloxycarbonyl)-1,2-Benzenedicarboxylic Anhydride is produced and tested under a strict quality management system. We ensure high purity and consistent performance suitable for demanding industrial and research applications. Comprehensive analytical testing, including HPLC, GC, and NMR, is performed to verify identity, purity, and absence of critical impurities. A Certificate of Analysis (COA) documenting all relevant specifications is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure containers are kept sealed to prevent absorption of atmospheric moisture which may affect product quality.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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