Zongertinib

Chemical Information
Zongertinib is a selective, irreversible tyrosine kinase inhibitor that targets human epidermal growth factor receptor 2 (HER2). It covalently binds to the HER2 receptor, including exon 20 insertions, and inhibits downstream signaling pathways while sparing wild-type epidermal growth factor receptor (EGFR), which serves to limit associated toxicities. On August 8, 2025, the US FDA granted accelerated approval to zongertinib for the treatment of advanced forms of non-small cell lung cancer (NSCLC) with HER2 tyrosine kinase domain activating mutations.
| CAS Number | 2728667-27-2 |
| PubChem CID | 160283094 |
| IUPAC Name | N-[1-[4-[3-methyl-4-(1-methylbenzimidazol-5-yl)oxyanilino]pyrimido[5,4-d]pyrimidin-6-yl]piperidin-4-yl]prop-2-enamide |
| Molecular Formula | C29H29N9O2 |
| Molecular Weight | 535.6 |
| XLogP | 4.1 |
| Topological Polar Surface Area | 123 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 9 |
| Rotatable Bond Count | 7 |
| Heavy Atom Count | 40 |
| Formal Charge | 0 |
| Complexity | 870 |
| Property | Value |
|---|---|
| Molecular Weight | 535.6 |
| XLogP3 | 4.1 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 9 |
| Rotatable Bond Count | 7 |
| Exact Mass | 535.24442120 |
| Monoisotopic Mass | 535.24442120 |
| Topological Polar Surface Area | 123 Ų |
| Heavy Atom Count | 40 |
| Formal Charge | 0 |
| Complexity | 870 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| 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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