Description

4-n-Undecylphenol is a high-purity alkylphenol derivative, specifically an 11-carbon chain phenol, known for its role as a versatile chemical intermediate. Its value lies in providing a hydrophobic phenolic moiety, which is essential for synthesizing specialized surfactants, antioxidants, and polymer additives. This compound is particularly needed by manufacturers in the polymer, lubricant, and specialty chemical industries seeking to modify material properties such as stability and surface activity.

Application

• Surfactant & Detergent Intermediate: A key building block for the synthesis of nonionic surfactants (alkylphenol ethoxylates) used in industrial and institutional cleaning formulations.
• Polymer Additive: Serves as a precursor for antioxidants and stabilizers in plastics and rubber to prevent thermal and oxidative degradation.
• Lubricant & Fuel Additive: Used in the production of additives that improve the performance and longevity of lubricating oils and fuels.
• Chemical Synthesis: An important intermediate in organic synthesis for creating more complex molecules in agrochemical and pharmaceutical research.
• Resin Modifier: Employed in the modification of phenolic and epoxy resins to alter flexibility, adhesion, and chemical resistance.

Basic Information

Product Name	4-n-Undecylphenol
CAS No.	20056-73-9
Molecular Formula	C₁₇H₂₈O
Molecular Weight	248.40 g/mol
Synonyms	p-Undecylphenol; 4-Undecylphenol; 1-Hydroxy-4-undecylbenzene; Phenol, 4-undecyl-; p-n-Undecylphenol; Undecylphenol; 4-(n-Undecyl)phenol; 4-Hydroxyundecylbenzene
EINECS	243-500-0

Quality Control

Our 4-n-Undecylphenol is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay by GC/HPLC and identity confirmation by FT-IR, to ensure it meets precise specifications for purity and consistency. A Certificate of Analysis (COA) documenting all critical quality parameters is provided with every shipment and is 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). This material is easily oxidized; for long-term storage, consider keeping under an inert atmosphere such as nitrogen to maintain optimal purity and shelf life.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Melting Point	72 - 76 °C
Loss on Drying	≤ 0.5%

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