Description

Phenyl 3,5-Diisopropylsalicylate is a specialized organic compound belonging to the class of salicylate esters, widely recognized for its utility as a high-performance light stabilizer and antioxidant in polymer systems. Its primary commercial value lies in its ability to effectively absorb ultraviolet light and inhibit thermal degradation, thereby significantly extending the service life and maintaining the physical properties of sensitive materials. This product is essential for formulators and manufacturers in the plastics, coatings, and specialty chemical industries seeking to enhance the durability and color stability of their finished products.

Application

• Primary use as a light stabilizer (UV absorber) in polyolefins such as polypropylene (PP) and polyethylene (PE).
• Key additive in polymer coatings and automotive paints to prevent yellowing and gloss loss from sunlight exposure.
• Stabilizer component in engineering plastics and synthetic fibers to improve weatherability.
• Used in adhesive and sealant formulations to maintain integrity under outdoor conditions.
• Acts as a synergistic antioxidant in combination with primary antioxidants like hindered phenols.
• Potential intermediate in the synthesis of specialty chemicals and pharmaceutical agents.

Basic Information

Product Name	Phenyl 3,5-Diisopropylsalicylate
CAS No.	16881-60-0
Molecular Formula	C19H22O3
Molecular Weight	298.38 g/mol
Synonyms	3,5-Diisopropylphenyl salicylate; Phenol, 2-hydroxybenzoic acid 3,5-diisopropylphenyl ester; UV Absorber 120; Salicylic acid, phenyl ester, 3,5-diisopropyl-; Bis(3,5-diisopropylphenyl) salicylate (common trade context); Light Stabilizer 120; PDPS; 2-Hydroxybenzoic Acid 3,5-Bis(1-methylethyl)phenyl Ester
EINECS	240-914-6

Quality Control

Our production of Phenyl 3,5-Diisopropylsalicylate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed against comprehensive specifications using advanced techniques including HPLC, GC, and NMR. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment, ensuring full traceability and compliance with customer and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Melting Point	54 - 58 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 1.0%

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