Glycerol Monooleate (GMO)

Overview: Glycerol Monooleate (GMO)

Glycerol Monooleate (GMO), often abbreviated as GMO (INCI: Glyceryl Oleate, CAS No. 111-03-5), is a versatile and highly effective non-ionic emulsifier derived from natural sources. It is an ester formed from glycerol and oleic acid, typically sourced from vegetable oils such as sunflower, olive, or rapeseed oil, ensuring a renewable and often sustainable profile. GMO is widely recognized for its lipophilic properties, making it an excellent water-in-oil (W/O) emulsifier, a skin conditioning agent, and a solubilizer across diverse industrial applications.

As a crucial component in myriad formulations, Glyceryl Oleate plays a pivotal role in enhancing product stability, texture, and performance. Its unique chemical structure, featuring both hydrophilic hydroxyl groups and a hydrophobic long-chain fatty acid, allows it to significantly reduce interfacial tension between immiscible liquids. CanCastor’s Glycerol Monooleate is meticulously produced to meet stringent quality standards, ensuring consistent efficacy whether you require it for pharmaceutical excipients, food additives, cosmetic formulations, or specialized industrial processes. Our commitment to quality and regulatory compliance, including adherence to USP, BP, EP, FCC, and REACH guidelines, positions CanCastor as a trusted global supplier.

Key Physical & Chemical Properties

Glycerol Monooleate (GMO) typically presents as a pale yellow to amber viscous liquid or a soft solid, depending on its purity and storage conditions. Its critical characteristics include:

• INCI Name: Glyceryl Oleate
• CAS Number: 111-03-5
• Appearance: Pale yellow to amber viscous liquid or soft solid
• Acid Value: Max 3.0 mg KOH/g (ASTM D664)
• Iodine Value: 65-80 g I₂/100g (USP 41 / BP 2019 / EP 9.0)
• Hydroxyl Value: 250-300 mg KOH/g
• Saponification Value: 170-190 mg KOH/g
• Monoester Content: Typically 40-60% (specific grades can achieve >90%)
• HLB Value: Approximately 3.8 – 4.0 (indicating a lipophilic character)
• Solubility: Soluble in oils, fats, and organic solvents; practically insoluble in water.