Elinzanetant

Chemical Information
Elinzanetant is a non-hormonal, selective, dual neurokinin 1 (NK-1) and 3 (NK-3) receptor antagonist. On July 23, 2025, it was approved by Health Canada to treat moderate to severe vasomotor symptoms (VMS) associated with menopause. By blocking receptor signaling on kisspeptin/neurokinin B/dynorphin (KNDy) neurons, which are hyperactivated due to estrogen decline in menopause, elinzanetant modulates neuronal activity involved in thermo-regulation. Later the same year, it was approved in the US for the same indication.
| CAS Number | 929046-33-3 |
| PubChem CID | 16063568 |
| IUPAC Name | N-[6-[(7S,9aS)-7-(hydroxymethyl)-3,4,6,7,9,9a-hexahydro-1H-pyrazino[2,1-c][1,4]oxazin-8-yl]-4-(4-fluoro-2-methylphenyl)-3-pyridinyl]-2-[3,5-bis(trifluoromethyl)phenyl]-N,2-dimethylpropanamide |
| Molecular Formula | C33H35F7N4O3 |
| Molecular Weight | 668.6 |
| XLogP | 5.9 |
| Topological Polar Surface Area | 69.1 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 13 |
| Rotatable Bond Count | 6 |
| Heavy Atom Count | 47 |
| Formal Charge | 0 |
| Complexity | 1060 |
| Property | Value |
|---|---|
| Molecular Weight | 668.6 |
| XLogP3 | 5.9 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 13 |
| Rotatable Bond Count | 6 |
| Exact Mass | 668.25973813 |
| Monoisotopic Mass | 668.25973813 |
| Topological Polar Surface Area | 69.1 Ų |
| Heavy Atom Count | 47 |
| Formal Charge | 0 |
| Complexity | 1060 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 2 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
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