Description

1,2,3-Propanetricarboxylic Acid, 1,2,3-Tributyl Ester is a high-purity organic ester derivative of citric acid, valued for its role as a versatile intermediate and functional additive. This compound is critical for formulators seeking a non-volatile, hydrophobic ester with excellent solvency and plasticizing properties. It is primarily utilized by manufacturers in the polymer, lubricant, and specialty chemical industries.

Application

• Polymer Plasticizer: Acts as a secondary plasticizer and compatibilizer in PVC, cellulose acetate, and other polymer systems to improve flexibility and processing.
• Lubricant Additive: Serves as a synthetic base oil or additive component, contributing to thermal stability and lubricity in industrial and automotive lubricants.
• Chemical Intermediate: Used in organic synthesis for the production of more complex esters, surfactants, and corrosion inhibitors.
• Solvent & Carrier: Functions as a high-boiling-point, non-aqueous solvent in coatings, inks, and adhesive formulations.
• Personal Care Ingredient: Employed as an emollient and solvent in cosmetic and personal care products where a non-greasy feel is desired.

Basic Information

Product Name	1,2,3-Propanetricarboxylic Acid, 1,2,3-Tributyl Ester
CAS No.	38094-11-0
Molecular Formula	C21H36O6
Molecular Weight	384.51 g/mol
Synonyms	Tributyl Citrate; Citric Acid Tributyl Ester; Butyl Citrate; Tributyl 2-Hydroxy-1,2,3-propanetricarboxylate; EINECS 253-755-5; TBC; Citroflex 4
EINECS	253-755-5

Quality Control

Our 1,2,3-Propanetricarboxylic Acid, 1,2,3-Tributyl Ester is manufactured under a strict quality management system. Every batch is tested to ensure it meets precise specifications for identity, purity, and performance. A comprehensive Certificate of Analysis (COA) documenting results for assay, appearance, and key impurities is provided with each shipment. We can supply grades compliant with relevant standards, including FDA and REACH requirements for specific applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong acids, oxidizers, and heat sources. Recommended storage temperature is 15-25°C. The product is easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to maintain optimal quality.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Specific Gravity (20°C)	1.035 - 1.045
Refractive Index (20°C)	1.443 - 1.447
Acidity (as Citric Acid)	≤ 0.02%
Water Content (KF)	≤ 0.1%

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