Description

Dipropyl Phthalate is a high-purity diester of phthalic acid, widely recognized for its excellent solvency and plasticizing properties. This compound is valued for its ability to enhance the flexibility and workability of various polymeric materials. It serves as a critical intermediate and functional additive for manufacturers in the plastics, coatings, and specialty chemical industries seeking reliable performance and consistent quality.

Application

• Plasticizer for Polymers: Used as a secondary or specialty plasticizer to impart flexibility and durability to PVC, polyvinyl acetates, and certain synthetic rubbers.
• Solvent and Carrier: Acts as a high-boiling-point solvent in industrial coatings, inks, and adhesive formulations, facilitating even application and film formation.
• Chemical Intermediate: Serves as a key building block in the synthesis of more complex esters, dyes, and pharmaceutical compounds.
• Lubricant Additive: Incorporated into specialty lubricants and greases to modify viscosity and improve performance under specific conditions.
• Dielectric Fluid: Utilized in certain electronic applications for its stable dielectric properties.
• Perfumery Fixative: Employed as a fixative to stabilize and prolong the scent profile in fine fragrances and cosmetic products.

Basic Information

Product Name	Dipropyl Phthalate
CAS No.	131-16-8
Molecular Formula	C14H18O4
Molecular Weight	250.29 g/mol
Synonyms	1,2-Benzenedicarboxylic Acid, Dipropyl Ester; Dipropyl 1,2-Benzenedicarboxylate; n-Propyl Phthalate; Phthalic Acid, Dipropyl Ester; DPP; Di-n-propyl Phthalate; Propyl Phthalate
EINECS	205-016-3

Quality Control

Our Dipropyl Phthalate is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot is analyzed against comprehensive specifications, including identity, assay, and impurity profiles. A Certificate of Analysis (COA) documenting these results is provided with every shipment to support your quality assurance protocols.

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.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.5%
Water Content (KF)	≤ 0.1%
Acidity (as Phthalic Acid)	≤ 0.02%
Refractive Index (20°C)	1.490 - 1.495
Density (20°C)	1.070 - 1.090 g/mL

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