2,4-Di-tert-butyl-6-(5-chloro-2H-benzotriazol-2-yl)phenol

• CAT Number: R030045
• CAS Number: 3864-99-1
• Molecular Formula: C20H24ClN3O
• Molecular Weight: 357.88
• Purity: ≥95%
• Synonyms: 2,4-Di-(tert-butyl)-6-(5-chloro-2H-benzo[d][1,2,3]triazol-2-yl)phenol; 2,4-Di-tert-butyl-6-(5-chlorobenzotriazol-2-yl)phenol; 2-(2-Hydroxy-3,5-di-tert-butylphenyl)-5-chloro-2H-benzotriazole; 2-(2-Hydroxy-3,5-di-tert-butylphenyl)-5-chlorobenzotriazole
• Storage: Store at -20°C
• IUPAC Name: 2,4-ditert-butyl-6-(5-chlorobenzotriazol-2-yl)phenol
• InChI: InChI=1S/C20H24ClN3O/c1-19(2,3)12-9-14(20(4,5)6)18(25)17(10-12)24-22-15-8-7-13(21)11-16(15)23-24/h7-11,25H,1-6H3
• InChIKey: UWSMKYBKUPAEJQ-UHFFFAOYSA-N
• SMILES: CC(C)(C)C1=CC(=C(C(=C1)N2N=C3C=CC(=CC3=N2)Cl)O)C(C)(C)C

2,4-Di-tert-butyl-6-(5-chloro-2H-benzotriazol-2-yl)phenol (Cat No.: R030045) is a UV stabilizer commonly used in plastics, coatings, and polymers to prevent degradation from ultraviolet radiation. Its structure combines a hindered phenol with a benzotriazole moiety, offering excellent light absorption and antioxidant properties. The bulky tert-butyl groups enhance thermal stability and reduce volatility, making it suitable for high-performance materials. This compound helps extend the lifespan and preserve the appearance of products exposed to sunlight, including automotive components, outdoor plastics, and industrial coatings.