Description

Hexadecyl 3,4,5-trihydroxybenzoate is a long-chain alkyl ester derivative of gallic acid, a naturally occurring phenolic compound. This chemical is valued for its antioxidant and stabilizing properties, making it a functional ingredient in formulations requiring protection against oxidative degradation. It is primarily utilized by manufacturers in the cosmetics, personal care, and specialty chemical industries seeking to enhance product shelf-life and performance.

Application

• Cosmetic & Personal Care Antioxidant: Used as a stabilizing agent in creams, lotions, and sunscreens to prevent rancidity and protect active ingredients from oxidation.
• Food & Beverage Additive Precursor: Serves as a starting material or intermediate for synthesizing antioxidants used in food-grade applications.
• Polymer & Plastic Stabilizer: Incorporated into polymer formulations to act as an antioxidant, helping to prevent thermal and oxidative degradation during processing and use.
• Pharmaceutical Intermediate: Employed in the synthesis of more complex pharmaceutical compounds that leverage its phenolic structure for biological activity.
• Lubricant & Fuel Additive: Functions as an antioxidant additive in industrial lubricants and specialty fuels to improve stability and longevity.
• Research & Development: Used in academic and industrial R&D for studying antioxidant mechanisms and developing new material science applications.

Basic Information

Product Name	Hexadecyl 3,4,5-Trihydroxybenzoate
CAS No.	5026-65-3
Molecular Formula	C23H38O5
Molecular Weight	394.55 g/mol
Synonyms	Hexadecyl Gallate; Cetyl Gallate; n-Hexadecyl Gallate; Gallic Acid Hexadecyl Ester; 3,4,5-Trihydroxybenzoic Acid Hexadecyl Ester; Palmityl Gallate; EINECS 225-722-6; NSC 334377
EINECS No.	225-722-6

Quality Control

Our Hexadecyl 3,4,5-trihydroxybenzoate is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling, to ensure it meets the required specifications for its intended application. A Certificate of Analysis (COA) detailing the specific results is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen) for long-term preservation to maintain optimal quality. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	95 - 100 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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