Description

1-O,3-o-Dipalmitoyl-2-o-Stearoyl-L-Glycerol is a structured triglyceride (TAG) with a specific fatty acid configuration at the sn-1, sn-2, and sn-3 positions of the glycerol backbone. This precise molecular architecture is critical for applications requiring controlled lipid digestion, absorption, and crystallization behavior. It serves as a high-value synthetic lipid intermediate and reference standard for research and development in the pharmaceutical, nutraceutical, and specialty chemical industries.

Application

• Pharmaceutical Excipient & Drug Delivery: Used in the formulation of lipid-based drug delivery systems (LBDDS) to enhance the bioavailability of poorly water-soluble active pharmaceutical ingredients (APIs).
• Nutritional Science & Clinical Research: Acts as a key component in structured lipids for specialized medical nutrition and metabolic studies, particularly those investigating fat absorption pathways.
• Biochemical & Analytical Reference Standard: Serves as a pure, well-defined standard for the calibration of analytical instruments (e.g., HPLC, GC) and for the identification of complex lipid mixtures.
• Cosmetic & Personal Care Formulations: Incorporated into high-end skincare products as an emollient and texture-enhancing agent due to its specific melting profile and skin compatibility.
• Food Science Research: Utilized in studies on fat crystallization, confectionery fats, and the development of functional food ingredients with tailored nutritional properties.
• Synthetic Chemistry Intermediate: Provides a defined starting material for the chemical synthesis of more complex lipids, phospholipids, and other glycerol derivatives.

Basic Information

Product Name	1-O,3-o-Dipalmitoyl-2-o-Stearoyl-L-Glycerol
CAS No.	2177-97-1
Molecular Formula	C53H102O6
Molecular Weight	835.38 g/mol
Synonyms	1,3-Dipalmitoyl-2-stearoyl-sn-glycerol; 1,3-Dihexadecanoyl-2-octadecanoyl-sn-glycerol; PSP; TAG 16:0/18:0/16:0; Glycerol 1,3-dipalmitate 2-stearate; sn-Glycerol-1,3-dipalmitate-2-stearate; Structured Triglyceride (16:0/18:0/16:0); L-α-1,3-Dipalmitoyl-2-stearoyl glycerol
EINECS	218-543-8

Quality Control

Our 1-O,3-o-Dipalmitoyl-2-o-Stearoyl-L-Glycerol is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) detailing specifications such as assay (by GC or HPLC), fatty acid composition, and enantiomeric purity. Our quality commitment supports applications requiring GMP-grade materials and reliable reference standards.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C to minimize oxidation. For long-term storage, keep at -20°C. Allow the container to reach room temperature before opening to prevent condensation and moisture ingress.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Fatty Acid Composition (GC)	Conforms to Palmitic/Stearic/Palmitic profile
Enantiomeric Purity	≥ 98.0% L-isomer
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents	Meets ICH guidelines

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