Mono- and diglyceride fatty acid esters are an important class of nonionic surfactants, produced by the esterification reaction of glycerol with fatty acids. They possess both hydrophilic and lipophilic properties and are commonly used in the food industry as emulsifiers and stabilizers to improve product texture and stability. In the daily chemical industry, they can also be used as emulsifying and moisturizing ingredients, with wide applications and high safety.

Basic Introduction

Chinese name: Mono- and diglyceride fatty acids

Chemical name: Octadecanoic acid, monoester with 1,2,3-propanetrio I

CAS Registry Number: 123-94-4

EINECS login number: 204-664-4

Molecular _formula: _{C₂₁H₄₂O₄}

Molecular weight: 358.56

HS Code: 1702300000

Synonyms: Glyceryl monostearate, glyceryl monostearate, glyceryl distearate, Capmul GMS-50; Cutina GMS; 2,3-dihydroxypropyloctadecanoate; Geleol; glycerinemonostearate; glycerinmonostearate; glycerolmonostearate; glycerolimonostearate; glycerolstearate; glycerylstearate; GMS; HallStar GMS; Imwitor191; Imwitor900; Kessco G MS;LipoGMS;monoesterwith1,2,3-propanetriol;monostearin;Myvaplex600P;Myvatex;1,2,3-propanetrioloctadecanoate;ProtachemGMS-450; RitaGMS;stearicacid,monoesterwithglycerol;stearicmonoglyceride;StepanGMS;Tegin;Tegin503;Tegin515;Tegin4100;TeginM;UnimateGMS.

application

Application areas	Application Notes
food additives	Glyceryl monostearate (GMS) is a multifunctional food additive primarily used as an emulsifier, thickener, and quality improver. It imparts a smooth texture to products such as ice cream and cream, and in baked goods, it improves internal structure, increases volume, and delays aging, thus effectively extending shelf life. Its high-purity forms (such as molecular distillation products) are safe and efficient, making it an ideal emulsifier for producing stable pastes.
Materials industry	In the plastics industry, GMS is commonly used as an antistatic agent and anti-fogging agent, especially in food packaging materials. Furthermore, it provides excellent internal lubrication during resin processing, helping to improve extrusion efficiency and enhance the gloss of the finished product surface.

Stability and storage conditions

It is recommended to store at room temperature, avoiding excessively high or low temperatures. A typical room temperature range (15-25 degrees Celsius) is generally suitable. Avoid storing in humid environments to prevent moisture absorption and affecting its quality. Avoid direct sunlight. Ensure the container is tightly sealed to prevent air and moisture from entering. Avoid contact with hazardous substances and ensure a clean and uncontaminated storage environment.

Product Compliance

Indicator range	GB1886.65-2015	JP	USP
Color	Milky white, pale yellow, or yellow to light brown
state	Viscous liquids, pastes, solids or powders
Total monoglyceride fatty acid esters	Conforms to the claim
Moisture, %	≤2.0
Free glycerol, %	≤7.0		≤1.2
Acid value (calculated as KOH), mg/g	≤6.0	≤15.0	≤6.0
Soap content (calculated as sodium oleate), %	≤6.0
Lead, mg/kg	≤2.0
iodine value		≤3.0	≤3.0
Hydroxyl value			290–330
Saponification value		157-170	150-165
Melting point, °C		≥55	≥55
Burning residue, %		≤0.1	≤0.5
Heavy metals, ppm			≤10