Description

Citric Acid 1-[2-Hydroxy-3-(Stearoyloxy)Propyl] Ester is a specialized ester derivative of citric acid and stearic acid, designed to function as a high-performance emulsifier and stabilizer. This compound is valued for its ability to modify the surface properties of materials, enhancing compatibility and performance in complex formulations. It is primarily sought by manufacturers in the food, cosmetics, and polymer industries seeking to improve product texture, stability, and shelf life.

Application

• Food Additive (Emulsifier & Stabilizer): Used in processed foods, baked goods, and dairy products to improve texture, prevent oil separation, and extend shelf life.
• Cosmetics & Personal Care: Acts as an emulsifying agent in creams, lotions, and makeup, ensuring a stable blend of oil and water phases for a smooth, consistent product.
• Polymer & Plastics Additive: Functions as an internal lubricant and compatibilizer in PVC and other polymer processing, improving flow properties and surface finish.
• Pharmaceutical Excipient: Employed as a solubilizer and emulsifier in topical ointments, creams, and certain oral liquid formulations.
• Industrial Lubricants & Greases: Serves as an additive to modify viscosity and enhance the stability of lubricant formulations.

Basic Information

Product Name	Citric Acid 1-[2-Hydroxy-3-(Stearoyloxy)Propyl] Ester
CAS No.	50825-78-0
Molecular Formula	C27H50O9
Molecular Weight	518.68 g/mol
Synonyms	Citric Acid Stearyl Ester; Citrostearin; 1-Stearoyl-2-citryl-sn-glycerol; 2-Hydroxy-1,2,3-propanetricarboxylic acid 1-[2-hydroxy-3-(1-oxooctadecyl)oxy]propyl ester; Stearyl Citrate; Glycerol 1-Stearate 2-Citrate; Citric acid esters of mono- and diglycerides (partial); E 484 (when used as a food additive)
EINECS	256-705-4

Quality Control

Our Citric Acid 1-[2-Hydroxy-3-(Stearoyloxy)Propyl] Ester is produced under a stringent quality management system. We offer grades compliant with relevant food (FCC, E 484) and cosmetic standards. Every batch is supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical parameters to ensure it meets your specific application requirements.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white waxy solid or powder
Identification (IR)	Conforms
Assay (HPLC)	Min. 95.0%
Acid Value	Contact for details
Saponification Value	Contact for details
Melting Point	40 - 50 °C
Heavy Metals (as Pb)	< 10 ppm
Loss on Drying	< 2.0 %

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