Description

1,2,3-Propanetricarboxylic Acid, 2-Hydroxy-, Trioctyl Ester is a high-purity synthetic ester derived from citric acid, valued for its excellent solvating and plasticizing properties. This compound is a critical performance additive and intermediate in advanced manufacturing processes where thermal stability and low volatility are required. It is primarily sought by formulators and chemical engineers in the polymer, lubricant, and specialty chemical industries.

Application

• Polymer Plasticizer: Acts as a high-performance, low-migration plasticizer for PVC, polyurethanes, and other specialty polymers, enhancing flexibility and durability.
• Lubricant & Grease Additive: Serves as a synthetic base oil or additive, improving viscosity index, thermal stability, and lubricity in high-temperature applications.
• Metalworking Fluids: Used as a component in synthetic coolants and cutting fluids, providing lubrication and corrosion inhibition.
• Solvent & Extraction Agent: Functions as a non-aqueous solvent or extractant in chemical synthesis and purification processes for sensitive compounds.
• Adhesive & Sealant Formulation: Imparts flexibility and adhesion properties in high-performance sealants, adhesives, and coatings.
• Cosmetic & Personal Care: Employed as an emollient and carrier in premium cosmetic formulations, offering a non-greasy feel.

Basic Information

Product Name	1,2,3-Propanetricarboxylic Acid, 2-Hydroxy-, Trioctyl Ester
CAS No.	76414-35-2
Molecular Formula	C33H62O8
Molecular Weight	586.85 g/mol
Synonyms	Trioctyl Citrate; Citric Acid Trioctyl Ester; 2-Hydroxy-1,2,3-propanetricarboxylic Acid Trioctyl Ester; Octyl Citrate; TOC; Acetyl Tributyl Citrate (related); Plasticizer TOC; Ester of Citric Acid and 2-Ethylhexanol (common misnomer); Bis(2-ethylhexyl) 2-hydroxypropane-1,2,3-tricarboxylate (alternative IUPAC)
EINECS	Contact for details

Quality Control

Our 1,2,3-Propanetricarboxylic Acid, 2-Hydroxy-, Trioctyl Ester is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing including assay, identity confirmation, and impurity profiling to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting purity, physical properties, and compliance are available upon request, supporting applications in regulated industries.

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 acids, strong bases, and strong oxidizing agents. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Acidity (as Citric Acid)	≤ 0.1%
Water Content (KF)	≤ 0.1%
Specific Gravity (20°C)	0.970 - 0.990
Refractive Index (20°C)	1.445 - 1.455

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