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                Welcome to Zhejiang Synose Tech Co., Ltd.!

                Light stabilizer series

                Light Stabilizer UV-2908

                Light Stabilizer UV-2908

                Chemical Name: Hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate

                Synonyms: 3,5-di-t-Butyl-4-Hydroxybenzoic Acid, Hexadecyl Ester; UV-2908; Hexadecyl-3,5-bis-tert-butyl-4-hydroxybenzoate; Palmitoyl-3,5-di-tert.butyl-4-hydroxybenzoate.

                CAS Number: 67845-93-6

                Molecular formulaC31H54O3

                Molecular weight: 475

                Molecular structure






                White to faint yellow powder

                Melting point, ℃



                ≥ 98


                ≤ 60

                Loss on drying,%

                ≤ 0.5


                Properties: It is white to faint yellow powder. The specific gravity is 1.07 at 25℃. It is easy soluble in toluene, chloroform, hexane, soluble in acetone etc.

                Uses: The product belongs to the class of hindered hydroxybenzoate light stabilizer. UV-2908 is most suitable for the protection of polyolefins, polycarbonate and the systems containing flame retardants and thioesters. It can be used alone or in combination with benzophenone UV stabilizer or phosphite antioxidant, showing good synergistic effect.

                    The dosage of UV-2908 ranges between 0.25% and 1% are recommended for protection. It depends on the substrate and performance requirement of the final application.

                Performance Benefits

                Low volatility, minimal color contribution, good chemical stability, acid and alkali resistant, excellent compatibilty with UV absorbers, HALS, and thioesters, FDA sanctioned to 0.5% in polyolefins

                Storage: Closed storage in a cool, dry place

                Package: 20, 180kg/drum or as customer require. 

                Expiration Date: 1 years

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