Description

Tripropionin is a high-purity triester of glycerol and propionic acid, widely recognized for its excellent solvent properties and plasticizing effects. This versatile chemical intermediate is valued for its low volatility and compatibility with a range of polymers and resins, making it a critical component in advanced material formulations. It serves key roles in the production of specialty coatings, adhesives, and as a flavor/fragrance precursor, meeting the stringent demands of the pharmaceutical, food, and polymer industries.

Application

• Polymer & Resin Plasticizer: Used as a secondary plasticizer and compatibilizer in cellulose acetate, nitrocellulose, and PVC formulations to improve flexibility and processing.
• Specialty Solvent: Acts as a high-boiling, low-volatility solvent for inks, coatings, and adhesive systems, providing excellent solvency for resins and dyes.
• Flavor & Fragrance Industry: Serves as a precursor and solvent in the synthesis of ester-based flavoring agents and fragrance compounds.
• Pharmaceutical Intermediates: Utilized as a building block and reaction medium in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs.
• Crosslinking Agent: Functions in crosslinking reactions for certain polymer systems, contributing to enhanced thermal and mechanical properties.
• Fuel & Lubricant Additive: Investigated for use as a bio-derived component or additive in synthetic lubricants and fuel formulations.

Basic Information

Product Name	Tripropionin
CAS No.	139-45-7
Molecular Formula	C12H20O6
Molecular Weight	260.28 g/mol
Synonyms	Glyceryl Tripropionate; 1,2,3-Propanetriol Tripropanoate; Propanoic Acid, 1,2,3-Propanetriyl Ester; Tripropanoin; Glycerol Tripropionate; Tripropionylglycerol; E 445
EINECS	205-368-1

Quality Control

Our Tripropionin is manufactured under a strict quality management system to ensure batch-to-batch consistency and reliability. We provide material that meets relevant industry specifications for technical, food-grade (FCC), and pharmaceutical (USP/EP) applications where applicable. Comprehensive testing, including identity, assay, and impurity profile analysis, is performed. A Certificate of Analysis (COA) documenting all critical parameters is available for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.430 - 1.434
Specific Gravity (20/20°C)	1.078 - 1.082
Acid Value	≤ 1.0 mg KOH/g
Water Content (KF)	≤ 0.2%

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