Description

p-Isononylphenol is a high-purity alkylphenol derivative, specifically the para-isomer of isononylphenol, serving as a critical intermediate in advanced chemical synthesis. Its value lies in its role as a versatile building block for producing nonionic surfactants, antioxidants, and polymer additives, offering excellent performance and stability. This compound is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking reliable raw materials for high-performance formulations.

Application

• Surfactant Intermediate: Primary raw material for the synthesis of nonylphenol ethoxylates (NPEs) and other nonionic surfactants used in industrial and institutional cleaners.
• Polymer Additive: Acts as a key intermediate in the production of antioxidants and stabilizers for plastics, rubber, and synthetic fibers to prevent thermal and oxidative degradation.
• Lubricant & Fuel Additive: Used in formulating additives for engine oils, industrial lubricants, and fuels to enhance detergency and dispersancy properties.
• Resin Modification: Employed in the manufacture of epoxy resins, phenolic resins, and alkyd resins to modify flexibility, adhesion, and curing characteristics.
• Chemical Intermediate: Serves as a precursor in agrochemical and pharmaceutical synthesis for various active ingredients and intermediates.

Basic Information

Product Name	p-Isononylphenol
CAS No.	26543-97-5
Molecular Formula	C15H24O
Molecular Weight	220.35 g/mol
Synonyms	4-Isononylphenol; 4-(3,5,5-Trimethylhexyl)phenol; para-Isononylphenol; Phenol, 4-isononyl-; Nonylphenol, branched; Isononyl phenol; Dinonylphenol (technical grade mixture reference); Antioxidant intermediate 4-INP
EINECS	247-816-3

Quality Control

Our p-Isononylphenol is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including GC, HPLC, and IR spectroscopy, to confirm identity, assay, and impurity profiles. Certificates of Analysis (COA) documenting all test results are provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere such as nitrogen. Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
para-Isomer Content	≥ 95.0%
Water Content (KF)	≤ 0.1%
Color (APHA)	≤ 50

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