| Description | Y18501, an oxysterol-binding protein (OSBPI) inhibitor structurally akin to Oxathiapiprolin, demonstrates potent inhibition against Phytophthora spp. and Pseudoperonospora cubensis with EC50 values between 0.0005 and 0.0046 μg/mL. It exhibits exceptional protective and curative effects on P. cubensis. When used in tandem with Chlorothalonil, Y18501 markedly enhances the suppression of P. cubensis [1]. |
| In vitro | Y18501 (25 g a.i./ha 或 50 g a.i./ha) 在温室内对黄瓜霜霉病具有超过60%的防控效果。无论是温室还是田间，Y18501对该病害均有效，施用25 g a.i./ha时，防控效果在温室和田间分别达到72.3%和78.9%，而50 g a.i./ha的应用量则使效果提高至80.8%和82.2%。Y1850 (10.012-0.333 μg/mL) 显现其预防活性优于治疗活性，先于接种24小时施用Y1850可得到70.11%至99.43%的显著防治效果，效果远优于接种后24小时使用。此外，Y18501与Chlorothalonil共用时，在1:100、1:70 和 1:50比例下显示出显著的协同防治作用，其协同作用比分别为2.00、1.83和2.64。 |
| molecular weight | 536.6 |
| Molecular formula | C27H26F2N6O2S |
| CAS | 2410627-32-4 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |