Description

Phthalsure, Isobutyl C16-18 Und C18 Ungesttigt Alkylester is a specialized plasticizer and chemical intermediate derived from phthalic anhydride and a blend of isobutyl alcohols with C16-18 and unsaturated C18 alkyl chains. This compound matters for its ability to impart flexibility, durability, and specific performance characteristics to polymer matrices, offering a balance of properties for demanding formulations. It is primarily needed by manufacturers in the plastics, coatings, adhesives, and specialty chemical industries seeking high-performance additives.

Application

• Primary Plasticizer for PVC, synthetic rubbers, and other polymers requiring enhanced low-temperature flexibility and processability.
• Performance Additive in industrial and automotive sealants, caulks, and adhesives to improve elasticity and adhesion.
• Co-formulant in specialty coatings and inks, contributing to film formation, gloss, and substrate wetting.
• Chemical Intermediate in the synthesis of more complex esters, lubricant additives, and surfactant molecules.
• Processing Aid in wire and cable insulation compounds to ensure consistent extrusion and final product performance.

Basic Information

Product Name	Phthalsure, Isobutyl C16-18 Und C18 Ungesttigt Alkylester
CAS No.	125078-59-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Isobutyl C16-18 and C18-unsaturated alkyl phthalate; Phthalic acid, isobutyl C16-18 and C18-unsaturated alkyl esters; Bis(isobutyl C16-18/C18-unsaturated alkyl) phthalate; Isobutyl alkyl phthalate (C16-18, C18:1); Plasticizer DINP/DIDP alternative (mixed chain); Mixed isobutyl alkyl phthalate ester
EINECS	Contact for details

Quality Control

Our Phthalsure, Isobutyl C16-18 Und C18 Ungesttigt Alkylester is produced under a rigorous quality management system. Each batch undergoes comprehensive analytical testing to ensure consistency, purity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, acid value, color, and specific gravity are available upon request 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 bases and incompatible materials such as strong oxidizing agents. For long-term storage, consider under an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (APHA)	≤ 50
Assay (GC)	≥ 98.5%
Acid Value (mg KOH/g)	≤ 0.1
Water Content (KF)	≤ 0.1%
Specific Gravity (20°C)	0.970 - 0.990
Refractive Index (20°C)	1.480 - 1.490

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