Bosutinib monohydrate

Drug ingredient

CAS 918639-08-4

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

Molecular structure of 918639-08-4
1 H₂O
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 unknown

Where It Comes From

EPA and Census publish no US supply data for this chemical.

3 FDA-registered drug labelers
MSN Laboratories Private Limited
Pfizer Laboratories Div Pfizer Inc
U.S. Pharmaceuticals

Why It Matters

Sectors
Health
Downstream Uses

Appears in 1 drug and cosmetic product listings (FDA).

  • •Bosulif
FDA Shortage Status
No FDA shortage records

Chemical Identity

CAS918639-08-4
PubChem CID11990828
DTXSIDDTXSID20238722
FormulaC26H31Cl2N5O4
Mol. Weight548.5 g/mol
SMILESCN1CCN(CC1)CCCOC2=C(C=C3C(=C2)N=CC(=C3NC4=CC(=C(C=C4Cl)Cl)OC)C#N)OC.O

Data Sources

Brief citations

Bosutinib monohydrate (CAS 918639-08-4) https://chemicalindependence.com/chemical/918639-08-4/ PubChem: 11990828. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/11990828 FDA National Drug Code directory: CAS 918639-08-4. 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/