Description

Castor-Safflower Oil/Phthalic Anhydride/Pentaerythritol is a specialized alkyd resin intermediate, identified by CAS No. 67989-49-5. This compound is engineered to deliver a unique balance of flexibility, drying properties, and chemical resistance in final polymer formulations. It is a critical raw material for manufacturers seeking to produce high-performance, modified coatings and resins. Key industries that rely on this intermediate include industrial paints, protective coatings, and specialty adhesives.

Application

• Primary resin component for air-drying and baking alkyd enamels.
• Modifier for high-flexibility industrial and maintenance coatings.
• Base for corrosion-resistant primers and metal coatings.
• Key ingredient in specialty adhesives and sealants requiring oil-modified properties.
• Intermediate for plasticizers and polymer additives.
• Used in formulating printing inks with specific gloss and adhesion characteristics.

Basic Information

Product Name	Castor-Safflower Oil/Phthalic Anhydride/Pentaerythritol
CAS No.	67989-49-5
Molecular Formula	Complex Polymer Intermediate
Molecular Weight	Varies by formulation
Synonyms	Pentaerythritol Phthalic Anhydride Castor Safflower Oil Ester; Alkyd Resin Intermediate 67989-49-5; Modified Alkyd Prepolymer; Oil-Modified Polyester Polyol; CASTOR-SAF OIL/PA/PE; Penta Phthalic Alkyd (Oil Modified); Safflower-Castor Oil Alkyd Resin Intermediate
EINECS	Contact for details

Quality Control

Our Castor-Safflower Oil/Phthalic Anhydride/Pentaerythritol intermediate is produced under a rigorous quality management system. Each batch is tested to ensure consistent performance characteristics such as acid value, viscosity, and color. Certificates of Analysis (COA) documenting these key parameters are available upon request to support your quality assurance and production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong acids and organic solvents. Ideal storage temperature is between 15°C and 25°C (59°F and 77°F). Keep containers tightly sealed when not in use to prevent moisture absorption and skin formation.

Specification

Item	Specification
Appearance	Viscous liquid to semi-solid
Color (Gardner)	≤ 8
Acid Value (mg KOH/g)	≤ 10
Viscosity (Gardner-Holdt)	Z2 - Z5
Non-Volatile Matter (%)	≥ 98.0
Identification (IR)	Conforms to standard

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