Description

4-Hydroxybenzoic Acid 9-Octadecenyl Ester is a high-purity, long-chain alkyl ester derivative of 4-hydroxybenzoic acid, valued for its lipophilic character and functional phenolic group. This compound is engineered to serve as a versatile intermediate and performance additive in advanced material formulations. It is particularly relevant for manufacturers in the polymer, cosmetic, and specialty chemical industries seeking to modify surface properties or enhance material compatibility.

Application

• Polymer Additive: Acts as a plasticizer, internal lubricant, or compatibilizer in specialty polymer and resin systems to improve processing and final product properties.
• Cosmetic & Personal Care Ingredient: Used as an emollient, texture enhancer, or carrier for active ingredients in creams, lotions, and lipstick formulations.
• Surface Coating Modifier: Imparts specific surface characteristics, such as slip or water repellency, in coatings, inks, and finishes.
• Chemical Intermediate: Serves as a key building block for the synthesis of more complex surfactants, liquid crystal compounds, or UV absorbers.
• Lubricant Formulation: Employed as a friction modifier or viscosity index improver in high-performance synthetic lubricants and greases.

Basic Information

Product Name	4-Hydroxybenzoic Acid 9-Octadecenyl Ester
CAS No.	137644-22-5
Molecular Formula	C25H40O3
Molecular Weight	388.59 g/mol
Synonyms	4-Hydroxybenzoic Acid Oleyl Ester; p-Hydroxybenzoic Acid 9-Octadecenyl Ester; Oleyl 4-Hydroxybenzoate; 9-Octadecenyl 4-Hydroxybenzoate; (Z)-9-Octadecenyl 4-hydroxybenzoate; Paraben O; Paraben Oleyl Ester; Oleyl Paraben
EINECS	Contact for details

Quality Control

Our production of 4-Hydroxybenzoic Acid 9-Octadecenyl Ester adheres to stringent quality management protocols. Each batch is subjected to comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling, to ensure it meets precise customer specifications. A Certificate of Analysis (COA) documenting all test results is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Heavy Metals (as Pb)	< 10 ppm
Residual Solvents	Meets ICH guidelines

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