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azathioprine sodium

Drug ingredient

CAS 446-86-6

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

Molecular structure of 446-86-6
1 Na⁺
US productionNot reported
Import value, 2024$7.6B
Top sourceIreland 61%

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293359 · basket

These shares come from HS customs code 293359, which covers 295 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IE 61%IrelandCH 30%SwitzerlandGB 2%United KingdomCN 2%ChinaIN 1%India
1 FDA-registered drug labeler
Hikma Pharmaceuticals USA Inc.

Why It Matters

Sectors
Health
Downstream Uses

Appears in 4 drug and cosmetic product listings (FDA).

  • •Azathioprine Sodium
  • •Azathioprine
  • •Imuran
  • •Azasan
FDA Shortage Status
No FDA shortage records

Chemical Identity

CAS446-86-6
PubChem CID11529527
DTXSIDDTXSID4020119
FormulaC9H6N7NaO2S
Mol. Weight299.25 g/mol
SMILESCN1C=NC(=C1SC2=NC=NC3=C2N=C[N-]3)[N+](=O)[O-].[Na+]

Data Sources

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Brief citations

azathioprine sodium (CAS 446-86-6) https://chemicalindependence.com/chemical/446-86-6/ PubChem: 11529527. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/11529527 FDA National Drug Code directory: CAS 446-86-6. 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/ US Census international trade: HS 293359 for CAS 446-86-6. Reporting year: 2024. https://usatrade.census.gov/