3,​3',​5,​5'-​Tetra-​tert-​butyl-​4,​4'-​stilbenequinone

• CAT Number: C001070
• CAS Number: 809-73-4
• Molecular Formula: C₃₀H₄₂O₂
• Molecular Weight: 434.65
• Purity: ≥95%
• Synonyms: 2,6,2′,6′-Tetra-tert-butyl-4,4′-ethanediylidenedi(2,5-cyclohexadien-1-one)
• Solubility: Chloroform (Slightly), Methanol (Slightly)
• Appearance: Red to Dark Red Solid
• Storage: -20°C
• IUPAC Name: 2,6-ditert-butyl-4-[2-(3,5-ditert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)ethylidene]cyclohexa-2,5-dien-1-one
• InChI: InChI=1S/C30H42O2/c1-27(2,3)21-15-19(16-22(25(21)31)28(4,5)6)13-14-20-17-23(29(7,8)9)26(32)24(18-20)30(10,11)12/h13-18H,1-12H3
• InChIKey: VEDXDZRQOYXKTL-UHFFFAOYSA-N
• SMILES: CC(C)(C)C1=CC(=CC=C2C=C(C(=O)C(=C2)C(C)(C)C)C(C)(C)C)C=C(C1=O)C(C)(C)C

3,3′,5,5′-Tetra-tert-butyl-4,4′-stilbenequinone (Cat No.:C001070) is a chemical compound with four tert-butyl groups and a stilbene quinone core. It is a yellow crystalline solid with excellent thermal stability and UV-absorbing properties, making it useful as a hindered amine light stabilizer (HALS) in plastics, coatings, and polymers to prevent degradation caused by exposure to light and heat. Additionally, this compound finds applications in the production of antioxidants and UV stabilizers.

Reference

Williams, D.J. et al.: J. Soc. Dyers Colour., 100, 268 (1984); Spitz, H.D.: J. Chromatogr., 190, 193 (1980)