Cas No: [78821-43-9]
Structure Formula :

Specification:
Appearance: White crystals
Purity: 90%
Melting point: 254-256¡ãC
Loss on drying: <0.5%
Residue on ignition: 0.1%
Description
Chemical name:
(22R,23R,24R)-2¦Á,3¦Á,22,23-tetrahydroxy-24-methyl-¦Â-homo-7-oxa-5-cholestan-6-one
Toxicology:
Acute oral toxicity for rat, LD50 >2000mg/Kg; mouse, LD50 >1000mg/Kg. Acute percutaneous toxicity for rat, LD50 >2000mg/Kg. Ames test indicates no mutagenicity.
Application:
24-Epibrassinolide can increase synthesis of IAA,ABA and ethylene, promote individual cell expansion, and thus enhance plant growth. It can inhibit aging, break dormancy, stimulate germination, promote growth of foliage plant, and induce hermaphrodite flower and female flower
Notes: 24-Epibrassinolide from Shanghai Vegicide is mixture of four isomers. The main component is a pair of diastereoisomers which possess different configuration of hydroxys on the side chain. Another pair of isomers is different in the position of lactone. The relative content of them was shown in the analysis report (A : B : C : D = 29.68 : 59.43 : 1.00 : 9.89)
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