Omnistab UV 328 – CAS: 25973-55-1

About Omnistab UV 328 – CAS: 25973-55-1

Omnistab UV 328 (25973-55-1) is an UV absorber belonging to the hydroxyphenyl benzotriazole class, which imparts outstanding light stability to plastics and other organic substrates.

  • CAS number: 25973-55-1
  • Chemical name: 2-(2H-Benzotriazol-2-yl)-4,6 ditertpentylphenol
  • Moleculair formula: C22H29N3O
  • Molecular weight (g/mol): 351.49
  • Content (%): 99.00 min
  • Melting point/range (ºC): 79 - 87
  • Volatiles (%): 0.30 max
  • Ash (%): 0.10 max
  • Transmittance 460 nm (%): 96.00 min
  • Transmittance 500 nm (%): 97.00 min
  • Product form(s): Granular, Powder
  • Packaging option(s): Carton
Product Data Sheet
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Product Data Sheet

Omnistab UV 328 – CAS: 25973-55-1


Date: Saturday, Mar 2, 2024

Product Composition

CAS number:25973-55-1
Chemical name:2-(2H-Benzotriazol-2-yl)-4,6 ditertpentylphenol
Moleculair formula:C22H29N3O
Molecular weight (g/mol):351.49

Product Specification

Content (%)99.00 min
Melting point/range (ºC)79 - 87
Volatiles (%)0.30 max
Ash (%)0.10 max
Transmittance 460 nm (%)96.00 min
Transmittance 500 nm (%)97.00 min
Product form(s):Granular, Powder
Packaging option(s)Carton
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