Is glycerol trioleate the same as any commercial material described as an oleic triglyceride?

Not necessarily. Triolein is the glycerol triester of oleic acid. Commercial oleic triglycerides can contain different fatty-acid and glyceride distributions. The offered grade specification identifies the material by the agreed triolein assay or ester profile; a shared CAS number or generic name does not establish identical composition.

Which data are most useful when comparing glycerol trioleate for an oil-phase formulation?

Compare the triolein assay or glyceride profile and its reporting basis, together with acid value, peroxide value, water, viscosity at the stated temperature and low-temperature flow. A fatty-acid profile after derivatization answers a different question from intact triolein content. Other agreed quality indicators and formulation trials depend on the intended application.

Does glycerol trioleate act as a standalone emulsifier in water-based systems?

Triolein is a water-insoluble triglyceride used as an oil-phase component. It does not by itself provide the emulsification system needed to disperse an oil phase in water. An appropriate emulsifier or surfactant combination is selected for the complete formulation, phase ratio and process conditions.

Glycerol Trioleate (Triolein) CAS 122-32-7

Glycerol Trioleate (Triolein) (CAS 122-32-7) is the triester of glycerol and oleic acid. This water-insoluble, oily ester serves as an oil-phase raw material in suitable lubricant, metalworking and personal-care formulations. Triolein content and glyceride composition, acid value, oxidation condition and viscosity distinguish commercial grades; the CAS number alone does not define the supplied specification.

CAS: 122-32-7
Synonyms: Triolein; Glyceryl trioleate; Glycerol trioleate; Oleic acid triglyceride; 1,2,3-Propanetriyl trioleate
Einecs: 204-534-7
Molecular Formula: C57H104O6 (defined triglyceride structure)
Grade: Commercial grade; triolein assay, glyceride profile and quality limits specified for the quoted material
Package: Container type and net weight stated in the quotation for the selected grade and order

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Product Description

1 Product overview

2 Technical information

3 Quality data and analytical methods

4 Related formulation choices

5 Supply documents and handling

Product overview

Triolein is formed from glycerol and three oleic acid units. Commercial grades can contain other glycerides or fatty-acid components. An oleic-acid-rich triglyceride mixture is therefore not necessarily equivalent to a grade defined by intact triolein content, even when the catalog name or CAS number is the same.

For lubricant and metalworking formulations, selection depends on viscosity at the stated temperature, acid value, oxidation condition and low-temperature flow. In personal-care systems, triolein has an oil-phase lipid role. Application suitability follows the selected grade and formulation; an industrial grade is not automatically a cosmetic, food or pharmaceutical grade.

Technical information

Product	Glycerol Trioleate (Triolein) CAS 122-32-7
CAS number	122-32-7
EC / list number	204-534-7
Molecular formula / identity	C57H104O6 (defined triglyceride structure)
Synonyms	Triolein; Glyceryl trioleate; Glycerol trioleate; Oleic acid triglyceride; 1,2,3-Propanetriyl trioleate
Grade	Commercial grade; triolein assay, glyceride profile and quality limits specified for the quoted material
Packaging	Container type and net weight stated in the quotation for the selected grade and order

Quality data and analytical methods

Intact triolein content and glyceride distribution can be characterized by appropriate HPLC or validated direct high-temperature GC. The report needs the detector and calculation or calibration basis: chromatographic area percentage is not automatically a mass fraction. GC of fatty-acid methyl esters (FAMEs) after derivatization describes the fatty-acid profile; it does not by itself establish intact triolein content.

Acid value (mg KOH/g), peroxide value (meq active oxygen/kg), iodine value (g I2/100 g) and saponification value (mg KOH/g) describe different quality attributes; none alone is a triolein purity assay. Water content can be measured by an appropriate Karl Fischer method. Viscosity results need the temperature and viscosity type: kinematic viscosity in mm²/s and dynamic viscosity in mPa·s are different quantities.

Related formulation choices

Glyceryl monooleate (GMO), sorbitan trioleate (Span 85) and polyglyceryl-4 oleate are distinct emulsifier candidates for systems containing an oil phase. Their polar groups and commercial compositions differ from triolein. Select the emulsifier for the intended phase ratio and process; these materials are formulation partners or comparisons, not direct triolein equivalents.

Supply documents and handling

We can provide the Certificate of Analysis (COA), Technical Data Sheet (TDS), Safety Data Sheet (SDS), and relevant assay or composition data and chromatograms for the selected grade. For a bulk quotation, send the required quantity, application or specification, and destination. The offer states the grade, agreed quality limits, packing and net weight.

Keep containers tightly closed, protect from light and limit unnecessary air exposure and contamination. Storage temperature and low-temperature handling follow the selected grade’s TDS and SDS.

FAQ - Technical & Supply Chain

Q:
Is glycerol trioleate the same as any commercial material described as an oleic triglyceride?

A: Not necessarily. Triolein is the glycerol triester of oleic acid. Commercial oleic triglycerides can contain different fatty-acid and glyceride distributions. The offered grade specification identifies the material by the agreed triolein assay or ester profile; a shared CAS number or generic name does not establish identical composition.
Q:
Which data are most useful when comparing glycerol trioleate for an oil-phase formulation?

A: Compare the triolein assay or glyceride profile and its reporting basis, together with acid value, peroxide value, water, viscosity at the stated temperature and low-temperature flow. A fatty-acid profile after derivatization answers a different question from intact triolein content. Other agreed quality indicators and formulation trials depend on the intended application.
Q:
Does glycerol trioleate act as a standalone emulsifier in water-based systems?

A: Triolein is a water-insoluble triglyceride used as an oil-phase component. It does not by itself provide the emulsification system needed to disperse an oil phase in water. An appropriate emulsifier or surfactant combination is selected for the complete formulation, phase ratio and process conditions.

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