Description

Ascorbyl Palmitate is a fat-soluble ester of ascorbic acid (Vitamin C) and palmitic acid, widely recognized for its potent antioxidant properties. This compound is highly valued for its ability to stabilize formulations and prevent oxidative rancidity in lipid-based systems. It is an essential ingredient for manufacturers in the food, nutraceutical, and cosmetic industries seeking to enhance product shelf life and efficacy.

Application

• Food & Beverage Industry: Primary antioxidant (E304) in oils, fats, margarine, and fried foods to prevent rancidity and extend shelf life.
• Dietary Supplements & Nutraceuticals: Key ingredient in fat-soluble Vitamin C supplements and antioxidant blends.
• Cosmetics & Personal Care: Stabilizing agent and antioxidant in creams, lotions, serums, and lipsticks to protect formulations from oxidation.
• Pharmaceuticals: Used as an antioxidant in topical ointments, transdermal patches, and certain lipid-based drug delivery systems.
• Animal Feed: Antioxidant additive to preserve the nutritional quality and freshness of fat-containing feed.
• Industrial Applications: Antioxidant in lubricants, greases, and other industrial oils subject to oxidative degradation.

Basic Information

Product Name	Ascorbyl Palmitate
CAS No.	137-66-6
Molecular Formula	C22H38O7
Molecular Weight	414.54 g/mol
Synonyms	L-Ascorbyl 6-palmitate; Vitamin C Palmitate; 6-O-Palmitoyl-L-ascorbic acid; Ascorbyl palmitate (USP); E304; Palmitoyl L-ascorbic acid; L-Ascorbic acid 6-hexadecanoate; Fat-soluble Vitamin C
EINECS	205-305-4

Quality Control

Our Ascorbyl Palmitate is manufactured under strict quality management systems. It meets or exceeds relevant standards such as FCC (Food Chemicals Codex) and USP (United States Pharmacopeia) grades for food and pharmaceutical applications. Every batch undergoes rigorous analytical testing, including assay, identification, and impurity profiling. A comprehensive Certificate of Analysis (COA) is provided with each shipment to ensure full traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve optimal quality and potency. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to yellowish-white powder
Identification (IR)	Conforms
Assay (HPLC)	98.0% - 102.0%
Melting Point	107°C - 117°C
Specific Rotation	+21° to +24°
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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