Moxidectin — impurities and related standards
All 9 Moxidectin-related compounds in the CATO catalogue, listed with their CAS numbers, molecular formulae and stock status. If the compound you need is not listed, send the structure or the impurity designation and we will check whether it can be synthesised or isolated.
Moxidectin is a semi-synthetic macrocyclic lactone of the milbemycin family, an antiparasitic active pharmaceutical ingredient used in human medicine against onchocerciasis and in veterinary medicine against a range of endo- and ectoparasites. Related-substance work on this molecule centres on the macrocyclic lactone skeleton, since fermentation and semi-synthesis generate closely related milbemycin analogues, oxidised derivatives and stereochemical variants that are difficult to separate chromatographically. The standards collected on this page are the impurities described in the Moxidectin EP monograph, covering EP-designated related substances together with additional research-grade moxidectin impurities that share the same macrocyclic core. Each is supplied as an individual, characterised lot for identification, system suitability and quantitative related-substance testing.
| Product | CAS | Cat. no. | Status |
|---|---|---|---|
| Moxidectin EP Impurity A | 114041-32-6 | C4X-22757 | On synthesis |
| Moxidectin EP Impurity B | — | C4X-227520 | On synthesis |
| Moxidectin EP Impurity C | 114041-23-5 | C4X-227512 | On synthesis |
| Moxidectin EP Impurity D | — | C4X-22751 | In stock |
| Moxidectin EP Impurity F | — | C4X-227510 | On synthesis |
| Moxidectin EP Impurity G | — | C4X-227514 | On synthesis |
| Moxidectin EP Impurity H | 2482741-81-9 | C4X-227515 | On synthesis |
| Moxidectin EP Impurity I | 113463-31-3 | C4X-227516 | On synthesis |
| Moxidectin EP Impurity L | 119718-45-5 | C4X-227511 | On synthesis |
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