Description

Rac-1,3-Distearoyl-2-Chloropropanediol CAS NO 26787-56-4 is a synthetic chlorinated diacylglycerol derivative, serving as a versatile chemical intermediate and functional additive. Its molecular structure, featuring two long-chain stearoyl groups and a reactive chloropropanediol core, makes it valuable for modifying material properties and synthesizing more complex molecules. This compound is primarily sought by R&D chemists and process engineers in the pharmaceutical, specialty polymer, and surfactant industries for its unique physicochemical characteristics.

Application

• Pharmaceutical Intermediate: Used in the synthesis of prodrugs, lipid-based drug delivery systems (e.g., liposomes), and bioactive molecules where controlled lipophilicity is required.
• Polymer Science & Plastics Additive: Acts as a plasticizer, internal lubricant, or co-monomer to enhance the flexibility, processability, and thermal stability of polymers and resins.
• Surfactant & Emulsifier Precursor: Serves as a key building block for synthesizing non-ionic or cationic surfactants with specific hydrophilic-lipophilic balance (HLB) values for cosmetic and industrial formulations.
• Lipid Chemistry Research: Employed as a standard or reagent in biochemical studies involving glycerolipid metabolism, enzyme substrates, or membrane model systems.
• Lubricant & Grease Formulation: Functions as a high-performance additive or base fluid component to improve viscosity index and extreme pressure properties.
• Coating & Ink Modifier: Incorporated to alter the rheology, adhesion, and drying characteristics of specialty coatings, inks, and adhesives.

Basic Information

Product Name	Rac-1,3-Distearoyl-2-Chloropropanediol
CAS No.	26787-56-4
Molecular Formula	C39H75ClO4
Molecular Weight	643.47 g/mol
Synonyms	1,3-Distearoyl-2-chloropropanediol; 2-Chloro-1,3-distearoylpropane-1,3-diol; 2-Chloro-1,3-di-O-stearoylglycerol; rac-2-Chloro-1,3-distearoylglycerol; Chlorinated Distearin; 1,3-Di-O-stearoyl-2-chloropropanediol; Glycerol 1,3-distearate 2-chlorohydrin
EINECS	Contact for details

Quality Control

Our Rac-1,3-Distearoyl-2-Chloropropanediol is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets precise customer specifications and consistent batch-to-batch reliability. Certificates of Analysis (COA) documenting purity, impurities, and other critical parameters are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product quality and stability.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Melting Point	Contact for details
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 20 ppm

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