Osthole Supplements CAS 484-12-8

Osthole Supplements is a class of natural coumarin compounds firstly extracted and isolated from Umbelliferae plants. The dry and mature fruit of Umbelliferae Cnidifolia (Fructuscnidii) has a high content, hence the name. Relevant studies have shown that Osthole Supplements also exist in a variety of other plants, mainly including Umbelliferae such as Angelica, Gudangia, and Cnidium, as well as Rutaceae such as Citrus, Champagne, Citrus, and Rutacea. In addition, it is also distributed in a few species of Asteraceae and Fabaceae.
Osthole Supplements, also known as methoxy parsvelol or parsley phenol methyl ether (osthole, Ost), its chemical name is 7-methoxy-8-prenyl coumarin, the core structure consists of benzene ring and pyran Ketone ring composition. As a member of coumarin compounds, Osthole Supplements has not only the core structure of coumarin, but also an isopentene structure, and the isopentene structure compound plays an important role in disease resistance as a plant protection element.
Osthole is a botanical insecticide. Its mode of action is mainly contact action, supplemented by stomach poisoning. died of exhaustion. The indoor activity and toxicity test shows that it has high activity against cabbage caterpillar (LD50 is 6.2258mg/kg). The field efficacy test shows that it has good control effect on cruciferous vegetable cabbage caterpillar and tea tree geometrid. The dosage for preventing and controlling cruciferous vegetable cabbage caterpillar is 4.8~7.2g/h㎡ of active ingredient (converted into 0.4% Osthole Supplements EC, the commercial volume is 80~120mL per mu); the dosage for preventing and controlling tea tree gnat is 6~7.2g of active ingredient /h㎡ (converted into 0.4% osthole emulsifiable oil and use 100~120mL per mu of land). Generally, the amount of drug solution per mu is 50~75kg, and it is sprayed evenly; the duration of effect is about 7 days. It is safe to crops within the dosage range, and no phytotoxicity has been seen.