9-(n-methyl-l-isoleucine)-cyclosporin a
Drug ingredientCAS 143205-42-9
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.
1 FDA-registered drug labeler
Darmerica, LLC
Why It Matters
Sectors
Health
Downstream UsesNot recorded
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
CAS143205-42-9
PubChem CID6473876
DTXSIDDTXSID70904006
FormulaC62H111N11O12
Mol. Weight1202.6 g/mol
SMILESCCC1C(=O)N(CC(=O)N(C(C(=O)NC(C(=O)N(C(C(=O)NC(C(=O)NC(C(=O)N(C(C(=O)N(C(C(=O)N(C(C(=O)N(C(C(=O)N1)C(C(C)CC=CC)O)C)C(C)C)C)CC(C)C)C)CC(C)C)C)C)C)CC(C)C)C)C(C)C)C(C)CC)C)C
Data Sources
- PubChem · compound 6473876Retrieved 2026-04-07
- FDA National Drug Code directoryRetrieved 2026-04-25
- FDA National Drug Code directoryRetrieved 2026-04-07
Brief citations
9-(n-methyl-l-isoleucine)-cyclosporin a (CAS 143205-42-9) https://chemicalindependence.com/chemical/143205-42-9/ PubChem: 6473876. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/6473876 FDA National Drug Code directory: CAS 143205-42-9. 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/