Description

Dinonylphenol CAS NO 137-99-5 is a high-purity, branched nonylphenol derivative widely used as a key chemical intermediate and functional additive. Its value lies in its excellent surfactant properties and its role as a precursor in the synthesis of specialized polymers and lubricant additives. This product is essential for manufacturers in the chemical, polymer, and lubricant industries seeking reliable raw materials for production.

Application

• Chemical Intermediate: Primary building block for the synthesis of nonylphenol ethoxylates (NPEs), a major class of nonionic surfactants.
• Polymer Industry: Used as a stabilizer, plasticizer, and modifier in the production of resins, elastomers, and specialty plastics.
• Lubricant & Fuel Additives: Acts as a precursor for detergents and dispersant additives in engine oils and industrial lubricants.
• Agricultural Chemicals: Intermediate in the formulation of certain pesticides, herbicides, and emulsifiers.
• Oilfield Chemicals: Component in drilling fluid formulations and demulsifiers for crude oil processing.
• Adhesives & Sealants: Functional additive to modify rheology and improve performance characteristics.

Basic Information

Product Name	Dinonylphenol
CAS No.	137-99-5
Molecular Formula	C24H42O
Molecular Weight	346.59 g/mol
Synonyms	Dinonyl phenol; Nonylphenol, branched; 4-Nonylphenol, branched; p-Nonylphenol, branched; Dinonylphenol (mixed isomers); Phenol, dinonyl-; Dinonyl phenol (technical grade); Dinonylphenol (branched chain)
EINECS	205-304-6

Quality Control

Our Dinonylphenol is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes comprehensive analytical testing, including gas chromatography (GC) for assay and impurity profiling, to meet precise customer specifications. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request.

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, acids, and bases.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (APHA)	≤ 50
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Hydroxyl Value	Contact for details
Density (20°C)	~0.95 g/mL

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