24-Epicastasterone

CAS No.: 78821-43-9

C28H48O6=480.68

Grade: high purity grade

Content: ≥ 95.0%

Melting point: 256 ～ 258 ℃

Loss on drying: ≤ 0.7%

Physicochemical properties: white crystalline powder. Soluble in methanol, ethanol, tetrahydrofuran, acetone and other organic solvents. Water solubility 5mg / L. Toxicity LD50 (mg / kg): the acute oral dose of rats is greater than 2000 technical drug / kg, and the acute oral dose of mice is greater than 1000 mg technical drug / kg. Ames test showed no mutagenic effect

Purpose: biochemical research. Low toxicity crop growth regulator. At low concentration (10-5-10-6mg / L), it can show various activities, which can increase vegetative growth of plants and promote fertilization. This kind of compound has been isolated from dozens of plants, and the content is very low. For example, indoleacetic acid (IAA) and abscisic acid (ABA) in the plants are about 2mg / kg and 60mg / kg respectively, while brassinolide is only 0.1mg/kg. Soaking wheat seeds with 0.05-0.5mg/l brassinolide for 24h promoted the growth and development of root system and plant height; Fertilizing leaves at tillering stage to increase tiller number; It can also be treated with 0.01-0.02, 0.01-0.02 (750L / ha times), 0.01-0.04mg/l (750L / ha times) chemical solution spray or seed soaking at booting stage

Storage: - 20 ℃