Talazoparib tosylate
Drug ingredientCAS 1373431-65-2
This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
US productionNot reported
Top sourceNo public record
This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.
Why supply is unknownWhere It Comes From
EPA and Census publish no US supply data for this chemical.
3 FDA-registered drug labelers
Catalent Germany Eberbach GmbH
Pfizer Laboratories Div Pfizer Inc
U.S. Pharmaceuticals
Why It Matters
Sectors
Health
Downstream Uses
Appears in 1 drug and cosmetic product listings (FDA).
- •Talzenna
FDA Shortage Status
Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."
No FDA shortage records
Chemical Identity
CAS1373431-65-2
PubChem CID135565654
DTXSIDDTXSID301026468
FormulaC26H22F2N6O4S
Mol. Weight552.6 g/mol
SMILESCC1=CC=C(C=C1)S(=O)(=O)O.CN1C(=NC=N1)C2C(NC3=CC(=CC4=C3C2=NNC4=O)F)C5=CC=C(C=C5)F
Data Sources
- PubChem · compound 135565654Retrieved 2026-04-07
- FDA National Drug Code directoryRetrieved 2026-04-25
- FDA National Drug Code directoryRetrieved 2026-04-07
Brief citations
Talazoparib tosylate (CAS 1373431-65-2) https://chemicalindependence.com/chemical/1373431-65-2/ PubChem: 135565654. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/135565654 FDA National Drug Code directory: CAS 1373431-65-2. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/