Description

4-tert-Octylphenol (CAS NO 140-66-9) is a versatile alkylphenol monomer widely used as a key building block in polymer and surfactant synthesis. Its branched alkyl chain structure provides excellent hydrophobic properties and chemical stability, making it a critical intermediate for high-performance materials. This compound is essential for manufacturers in the polymer, agrochemical, and specialty chemical industries seeking reliable raw materials for production.

Application

• Surfactant & Detergent Intermediate: A primary raw material for the synthesis of nonionic surfactants (e.g., octylphenol ethoxylates) used in industrial cleaners, detergents, and emulsifiers.
• Polymer & Resin Production: Serves as a crucial monomer and chain modifier in the manufacture of phenolic resins, epoxy resins, and polycarbonates, enhancing flexibility and processing characteristics.
• Agrochemical Formulations: Used as an intermediate in the production of pesticides, herbicides, and plant growth regulators, where it acts as a solubilizer and stabilizer.
• Oilfield Chemicals: Employed in drilling mud formulations and oil demulsifiers due to its surface-active properties.
• Rubber & Plastic Additives: Functions as an antioxidant intermediate and a stabilizer in the production of synthetic rubbers and plastics.
• Chemical Intermediate: A key precursor for various chemical syntheses, including UV stabilizers, lubricant additives, and specialty adhesives.

Basic Information

Product Name	4-tert-Octylphenol
CAS No.	140-66-9
Molecular Formula	C14H22O
Molecular Weight	206.32 g/mol
Synonyms	p-tert-Octylphenol; 4-(1,1,3,3-Tetramethylbutyl)phenol; (1,1,3,3-Tetramethylbutyl)phenol; Octylphenol; OP; tert-Octylphenol; p-(1,1,3,3-Tetramethylbutyl)phenol; 4-(2,4,4-Trimethylpentan-2-yl)phenol
EINECS	205-426-2

Quality Control

Our 4-tert-Octylphenol is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including gas chromatography (GC) and infrared spectroscopy (IR), to verify identity and assay. Certificates of Analysis (COA) documenting purity, color, and moisture content are available for every shipment to support your quality assurance protocols.

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, strong acids, and strong bases. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or flakes
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Melting Point	80 - 84 °C
Color (APHA)	≤ 50
Moisture (KF)	≤ 0.5%

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