(E)-2-Octenal  (Synonyms: trans-2-Octenal)

(E)-2-Octenal is an antifungal agent. (E)-2-Octenal disrupts cell membrane integrity and causes ROS accumulation. (E)-2-Octenal decreases the activities of phosphofructokinase and pyruvate kinase. (E)-2-Octenal inhibits Neofusicoccum parvum growth by disrupting mitochondrial energy metabolism. (E)-2-Octenal suppresses the growth of a Prochloraz (HY-B0845)-resistant Penicillium italicum strain. (E)-2-octenal exerts a broad-spectrum and potent inhibitory effect on various fungi, including Sclerotium rolfsii, Metarhizium anisopliae sensu lato, and Aspergillus flavus, etc. (E)-2-Octenal can be used for the research of citrus blue mold and mango stem-end rot^[1][2].

(E)-2-octenal (0.25-2.00 mL L⁻¹；作用 2~4 天) 可抑制抗 Prochloraz (HY-B0845) 的 Penicillium italicum XX5 的菌丝生长，其 MIC 为 0.25 mL L⁻¹，MFC 为 0.50 mL L⁻¹^[1]。
(E)-2-octenal (0.125-0.25 mL L⁻¹；30-120 min) 在耐 Prochloraz 的 Penicillium italicum XX5 菌丝体中诱导呈剂量和时间依赖性的氧化应激，导致 ROS 积累^[1]。
(E)-2-octenal (0.1-1.6 μL/mL) 以浓度依赖方式抑制 Neofusicoccum parvum 的菌丝生长，其最低抑菌浓度 (MIC) 为 0.4 μL/mL，最低杀菌浓度 (MFC) 为 0.8 μL/mL^[2]。
(E)-2-octenal (0.2-0.4 μL/mL) 会破坏Neofusicoccum parvum(小新褐腐壳霉) 菌丝的形态，且浓度越高，破坏程度越严重^[2]。

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

126.20

C₈H₁₄O

2548-87-0

液体（密度：0.846 g/cm³）

Room temperature in continental US; may vary elsewhere.

-20°C, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

• [1]. Luo Y, et al. (E)-2-Octenal suppresses the growth of a prochloraz-resistant Penicillium italicum strain and its potential antifungal mechanisms[J]. Postharvest Biology and Technology, 2023, 205: 112515.

  [2]. Tan X, et al. (E)-2-Octenal inhibits Neofusicoccum parvum growth by disrupting mitochondrial energy metabolism and is a potential preservative for postharvest mango. Food Res Int. 2025;201:115639.  [Content Brief]