Description

4-Hydroxybenzoic Acid Hexadecyl Ester is a high-purity, long-chain alkyl ester of p-hydroxybenzoic acid, widely recognized for its utility as a versatile intermediate and functional additive. Its primary commercial value lies in its lipophilic character and stability, making it a key building block for synthesizing specialized surfactants, emulsifiers, and polymer additives. This compound is essential for manufacturers in the personal care, cosmetics, and specialty chemical industries seeking to develop products with specific solubility and performance characteristics.

Application

• Cosmetic & Personal Care Ingredient: Acts as an emollient, thickener, or co-emulsifier in creams, lotions, and sunscreens.
• Polymer Additive: Serves as a plasticizer or processing aid in specialty polymer formulations to modify flexibility and flow properties.
• Surfactant & Emulsifier Synthesis: A crucial lipophilic intermediate for producing non-ionic surfactants and emulsifying agents.
• Lubricant & Grease Formulation: Used as an additive to enhance the performance characteristics of industrial lubricants and functional greases.
• Pharmaceutical Excipient: Employed in controlled-release drug delivery systems due to its hydrophobic nature.
• Chemical Intermediate: Utilized in organic synthesis for introducing the cetyl (hexadecyl) group into target molecules.

Basic Information

Product Name	4-Hydroxybenzoic Acid Hexadecyl Ester
CAS No.	71067-09-9
Molecular Formula	C23H38O3
Molecular Weight	362.55 g/mol
Synonyms	Hexadecyl 4-hydroxybenzoate; Cetyl p-hydroxybenzoate; p-Hydroxybenzoic acid cetyl ester; 4-Hydroxybenzoic acid cetyl ester; Cetyl paraben; n-Hexadecyl p-hydroxybenzoate; Paraben C16; Benzoic acid, 4-hydroxy-, hexadecyl ester
EINECS	Contact for details

Quality Control

Our 4-Hydroxybenzoic Acid Hexadecyl Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and composition. Certificates of Analysis (COA) documenting these results are provided to guarantee traceability and batch-to-batch consistency, supporting your quality assurance protocols.

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 incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or flakes
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	58 - 62 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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