CAS No.: 521-61-9

Molecular formula: C16H12O5

Molecular weight: 284.26

Physical and chemical properties: brick red monoclinic acicular crystal, melting point 203~207 ℃. Soluble in benzene, chloroform, pyridine, toluene and sodium hydroxide aqueous solutions, almost insoluble in water, sodium carbonate and other weak alkaline aqueous solutions, slightly soluble in ethyl acetate, acetic acid, methanol, ether, etc.

High active botanical fungicide: In the early stage, emodin methyl ether was mainly used in the pharmaceutical industry. At present, the application of emodin methyl ether in agriculture has been gradually opened up with the deepening of research. The emodin methyl ether, which is made from natural plant rhubarb as raw material and carefully extracted its active ingredients, is a highly active botanical fungicide. Practice has proved that 0.5% emodin methyl ether AS is effective against powdery mildew, downy mildew, gray mold Anthrax has good control effect. It is low toxic to humans and animals, friendly to the environment, and not easy to produce drug resistance. Because it contains a lot of humic acid and amino acid, it can also effectively promote the growth of new shoots and buds of crops, and can be used as a substitute for conventional high toxic and high residual pesticides, especially suitable for green and organic vegetable production. Emodin methyl ether is a protective fungicide, which can induce the protective reaction of crops, inhibit the germination of pathogen spores, the growth of hyphae, and the formation of haustorium, so as to protect crops from the invasion of pathogens and achieve the effect of disease prevention.

Pharmacological action: Emodin methyl ether can inhibit 26 kinds of bacteria, such as Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Streptococcus and Shigella; It has mutation effect in Salmonella TA1535 test; It has strong inhibitory effect on the growth of human cervical cancer Hela cells; Antibacterial, used for laxatives, etc.