Description

1-Palmitoyl-2-Oleoyl-3-Stearoyl-Rac-Glycerol is a well-defined synthetic triacylglycerol (TAG) with a specific fatty acid composition at each sn-position of the glycerol backbone. This structured lipid is of significant value for research and development, providing a precise molecular standard for studying lipid metabolism, membrane biophysics, and as a critical reference material in analytical chemistry. It is primarily sought by scientists and manufacturers in the pharmaceutical, nutraceutical, and advanced biochemical research sectors for its role in formulation development and as a high-purity calibrant.

Application

• Biochemical & Pharmaceutical Research: Serves as a critical standard and substrate for enzymatic studies, particularly involving lipases and phospholipases, and for investigating lipid digestion and absorption.
• Analytical Reference Standard: Used as a high-purity calibrant in chromatographic methods (HPLC, GC) for the quantification and qualification of complex lipid mixtures in food, biological, and pharmaceutical samples.
• Lipidomics & Metabolomics: Acts as a key internal standard or system suitability check in mass spectrometry-based lipid profiling to ensure analytical accuracy and reproducibility.
• Nutraceutical & Specialty Lipid Development: Provides a model structured triglyceride for formulating specialized nutritional products and studying controlled release or targeted delivery systems.
• Membrane Biophysics Studies: Utilized in the preparation of model membranes (liposomes, bilayers) to study the effects of specific triglyceride structures on membrane fluidity and stability.
• Cosmetic & Personal Care R&D: Employed as a reference compound in the development and quality control of emollients, moisturizers, and other lipid-based cosmetic formulations.

Basic Information

Product Name	1-Palmitoyl-2-Oleoyl-3-Stearoyl-Rac-Glycerol
CAS No.	2190-27-4
Molecular Formula	C55H104O6
Molecular Weight	861.42 g/mol
Synonyms	POS; rac-1-Palmitoyl-2-oleoyl-3-stearoyl-glycerol; Glycerol 1-palmitate 2-oleate 3-stearate; TAG 16:0-18:1-18:0; Triacylglycerol POS; 1-Hexadecanoyl-2-(9Z-octadecenoyl)-3-octadecanoyl-rac-glycerol; (9Z)-1-Hexadecanoyl-2-octadecenoyl-3-octadecanoyl-rac-glycerol
EINECS	Contact for details

Quality Control

Our 1-Palmitoyl-2-Oleoyl-3-Stearoyl-Rac-Glycerol is produced and handled under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity assay and identity confirmation, to ensure it meets the high standards required for research and reference applications. A Certificate of Analysis (COA) detailing specific results for purity, identity, and related substances is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store at -20°C or below under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Allow the sealed container to reach room temperature before opening to minimize moisture condensation.

Specification

Item	Specification
Appearance	White to off-white solid or waxy solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Fatty Acid Composition (GC)	Conforms to Palmitic:Oleic:Stearic ratio
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents (GC)	Meets ICH guidelines

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