20-Hydroxyecdysone
| Clinical data | |
|---|---|
| Other names | BIO101 | 
| Pregnancy category | 
 | 
| Routes of administration | Oral | 
| Legal status | |
| Legal status | 
 | 
| Pharmacokinetic data | |
| Metabolism | Hepatic | 
| Elimination half-life | 4-9 hours | 
| Excretion | Urinary:?% | 
| Identifiers | |
| 
 | |
| CAS Number | |
| PubChem CID | |
| ChemSpider | |
| UNII | |
| ChEBI | |
| ChEMBL | |
| CompTox Dashboard (EPA) | |
| ECHA InfoCard | 100.241.312 | 
| Chemical and physical data | |
| Formula | C27H44O7 | 
| Molar mass | 480.642 g·mol−1 | 
| 3D model (JSmol) | |
| 
 | |
| 
 | |
| (what is this?) (verify) | |
20-Hydroxyecdysone (ecdysterone or 20E) is a naturally occurring ecdysteroid hormone which controls the ecdysis (moulting) and metamorphosis of arthropods. It is therefore one of the most common moulting hormones in insects, crabs, etc. A phytoecdysteroid produced by and extracted from various plants, including Cyanotis vaga, Ajuga turkestanica and Rhaponticum carthamoides, it is belived to be a plant defense against herbivory that disrupts the reproduction of insect pests. In arthropods, 20-hydroxyecdysone acts through the ecdysone receptor. Although mammals (including humans) lack this receptor, 20-hydroxyecdysone affects mammalian biological systems. 20-Hydroxyecdysone is an ingredient of some supplements that aim to enhance physical performance. In mammals, it is hypothesized to bind to the estrogen receptor beta (ERβ) protein.