Stabilization of household, body-care and food products by using benzotropolone containing plant extracts and/or related benzotropolone derivatives

摘要

Disclosed is the use of benzotropolone derivatives of formula; whereinR₁, R₂ and R₇ independently from each other are hydrogen; C₁-C₃alkyl; or COR₈;R₃ is hydrogen; or COOR₉ R₄ is hydrogen; or C₁-C₃alkyl;R₅ is hydrogen; hydroxy; C₁-C₃-alkoxy; or —O—(CO)—R₁₀;R₆ is hydrogen; C₁-C₃alkyl; or COR₈; orR₅ and R₆ together may form a five or six membered ring; orR₆ and R₇ together form a five or six membered ring; andR₈, R₉, R₁₀ independently of each other are C₁-C₃₀alkyl;for protecting body-care and household products from photolytic and oxidative degradation.