Does CAS 111-03-5 ensure the same monooleate content in every glyceryl monooleate grade?

No. Commercial glyceryl monooleate may contain monoglycerides with varying amounts of di- and triglycerides, so the CAS number does not establish a fixed ester distribution. For the intended formulation, compare monoglyceride or monooleate content, acid value, peroxide value, iodine value where relevant, physical form and the agreed test methods.

Does CAS 111-03-5 by itself establish food, pharmaceutical or cosmetic grade?

No. The CAS identifies glyceryl 1-monooleate, while commercial GMO grades can differ in mono-, di- and triglyceride distribution, purity standards and intended use. State the required standard and destination market, then review the exact grade specification, COA, TDS, SDS and any applicable compendial or food-use documentation.

Glyceryl Monooleate (GMO/XPO-4) CAS 111-03-5

Glyceryl Monooleate (CAS 111-03-5), also known as GMO or Glycerol 1-Monooleate, is a lipophilic ester used as a co-emulsifier, emollient, dispersing aid and lubricity component. Commercial grades differ in their mono-, di- and triglyceride distribution. Monoester content, acid value, hydroxyl value, saponification value, water content, physical form and peroxide value are key selection parameters. COA, TDS and SDS are available to support specification review and safe handling.

CAS: 111-03-5
Synonyms: Glyceryl Monooleate, Glycerol 1-Monooleate, GMO, Monoolein, 2,3-Dihydroxypropyl Oleate, XPO-4
Einecs: 203-827-7
Molecular Formula: C₂₁H₄₀O₄
Grade: Specified by monoester or monoglyceride content, acid, hydroxyl and saponification values, free glycerol, water, color and peroxide value; see the current TDS and COA.
Package: Drums or bulk; confirm container, liner, net weight and handling for your order and destination.

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Product Description

1 Identity and physicochemical profile

2 Applications and grade selection

3 Storage and handling

4 Safety, documentation and procurement

Identity and physicochemical profile

Item	Technical guidance
Product identity	Glyceryl monooleate; glycerol 1-monooleate
CAS / EC	111-03-5 / 203-827-7
Formula / molecular weight	C₂₁H₄₀O₄ / 356.5 g/mol
Commercial composition	Monooleate content and accompanying glycerides vary by grade and manufacturing route
Key quality controls	Monoester or monoglyceride content, acid value, hydroxyl value, saponification value, free glycerol, water, color and peroxide value where applicable
Terminology	Glyceryl monooleate is an ester, not a glyceryl oleate ether

Applications and grade selection

Glyceryl monooleate is evaluated as a lipophilic co-emulsifier, emollient, dispersing aid or lubricity component. Performance depends on the commercial glyceride distribution, oil phase, oxidation control, dosage and process.

For personal care, compare sensory effect, emulsion stability, odor, color and impurity documentation for the offered grade.
For lubricant or metalworking use, test friction, corrosion, emulsion behavior, oxidation and compatibility with the complete additive package.
Food, pharmaceutical or other regulated use requires a specifically documented grade and independent compliance confirmation.

Storage and handling

Store tightly closed in a cool, dry area protected from heat, light, air exposure and incompatible oxidants. Follow the supplier’s instructions for warming, homogenization and sampling if the product thickens or separates.

Safety, documentation and procurement

Handle using the current SDS and site procedures. A quotation request should state the intended use, required monoglyceride or monooleate content, acid and peroxide limits, physical form, sample quantity, annual demand, package and destination.

For oleate ester emulsifier and lubricant comparisons, see PEG Monooleate, Polyglyceryl-4 Oleate, and PEG 400 Dioleate.

FAQ - Technical & Supply Chain

Q:
Does CAS 111-03-5 ensure the same monooleate content in every glyceryl monooleate grade?

A: No. Commercial glyceryl monooleate may contain monoglycerides with varying amounts of di- and triglycerides, so the CAS number does not establish a fixed ester distribution. For the intended formulation, compare monoglyceride or monooleate content, acid value, peroxide value, iodine value where relevant, physical form and the agreed test methods.
Q:
Does CAS 111-03-5 by itself establish food, pharmaceutical or cosmetic grade?

A: No. The CAS identifies glyceryl 1-monooleate, while commercial GMO grades can differ in mono-, di- and triglyceride distribution, purity standards and intended use. State the required standard and destination market, then review the exact grade specification, COA, TDS, SDS and any applicable compendial or food-use documentation.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

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Product-specific conditions are confirmed before order.

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