(±)-γ-Tocopherol is a form of vitamin E with antioxidant and anti-inflammatory properties. It traps and detoxifies reactive nitrogen oxide species, including nitrogen dioxide, in cell-free assays. It also reduces the synthesis of prostaglandin E2 (PGE2) induced by LPS in RAW 264.7 macrophages and by IL-1β in A549 cells. (±)-γ-Tocopherol inhibits LPS-induced nitrite release and inducible nitric oxide synthase (iNOS) expression in RAW 264.7 cells and reduces COX-2 activity in A549 cells pretreated with IL-1β. Serum levels of (±)-γ-tocopherol are decreased in patients with cardiovascular disease.
β-Tocopherol (Standard)是 β-Tocopherol 的认证参考物质,适用于定量分析、质量控制及生物化学研究。作为维生素 E 的一种同系物,β-Tocopherol 具有抗氧化活性,可抑制酪氨酸酶活性和黑色素生成,并对 α-去甲基生育酚诱导的细胞生长抑制和蛋白激酶 C 活性降低具有保护作用。
DL-α-tocopherol acetate (Standard) 是 DL-α-tocopherol acetate 的标准品,适用于定量分析、质量控制及生化实验等相关研究。DL-α-tocopherol acetate (Vitamin E acetate)是一种维生素 E 衍生物,用作家禽饲料中的维生素 E 补充剂。