Flag of the United StatesAmerican Chemical Independence

Torsemide

Drug ingredient

CAS 56211-40-6

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

Molecular structure of 56211-40-6
US productionNot reported
Import value, 2024$2.0B
Top sourceIreland 63%

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 293590 · basket

These shares come from HS customs code 293590, which covers 182 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IE 63%IrelandSG 14%SingaporeIN 7%IndiaCN 7%ChinaCH 2%Switzerland
30 FDA-registered drug labelers
A-S Medication Solutions
American Health Packaging
Aphena Pharma Solutions - Tennessee, LLC
Aurobindo Pharma Limited
AvKARE
AvPAK
Bioindustria L.I.M. SpA
Bryant Ranch Prepack
Camber Pharmaceuticals, Inc.
Chartwell RX, LLC
COSMA Spa
Direct_Rx
Golden State Medical Supply, Inc.
Harman Finochem Limited
Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.
Hetero Labs Limited
Hikma Pharmaceuticals USA Inc.
Honour Lab Limited
Ipca Laboratories Limited
KALINTIS HEALTHCARE PRIVATE LIMITED
Major Pharmaceuticals
Medilux Laboratories Private Limited
NCS HealthCare of KY, LLC dba Vangard Labs
Redpharm Drug
REMEDYREPACK INC.
Rising Pharma Holdings, Inc.
Sarfez Pharmaceuticals Inc
Teva Pharmaceuticals USA, Inc.
XLCare Pharmaceuticals Inc.
ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD.

Why It Matters

Sectors
Health
Downstream Uses

Appears in 2 drug and cosmetic product listings (FDA).

  • •Torsemide
  • •Soaanz
FDA Shortage Status
No FDA shortage records

Vendor Pricing

$2.30/gA2B Chem LLC
CountryUnited States
Pack$230.00 / 100 g
Purity98%
Vendors19 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

18 more vendors
VendorCountry$/gPackPurity
AA BLOCKSUnited States$3.00100 g98%
Combi-Blocks, Inc.United States$3.20100 g98%
AK Scientific SpecializedUnited States$3.8425 g95%
AK Scientific, Inc.United States$5.0825 g98%
MedKoo Biosciences, IncUnited States$49.50100 g98%
Fluorochem UKUnited Kingdom$134.421 g98%
TargetMol ChemicalsChina → United States$198.001 g99.84%
TargetMol Chemicals EUAustria$276.00500 mg99.84%
MolnovaChina$880.00100 mg99%
MedChemExpress MCESweden$1802.90100 mg99.35%
Otava, Ltd. (2 weeks)Ukraine$2724.0050 mg90%
Princeton BioMolecular Research (SC)United States$2900.00100 mg90%
Sigma-Aldrich (Rush Stock)Germany$3101.00200 mg—
Sigma-AldrichGermany$3101.00200 mg—
Vitas M Chemical LimitedHong Kong$3170.00100 mg90%
Apexbio Technology LLCUnited States$3520.0025 mg99.91%
Key Organics Ltd.United Kingdom$6900.0010 mg97%
TimTec, LLC (back-ordered)United States$32000.0015 mg94%

Chemical Identity

CAS56211-40-6
PubChem CID41781
DTXSIDDTXSID2023690
FormulaC16H20N4O3S
Mol. Weight348.4 g/mol
SMILESCC1=CC(=CC=C1)NC2=C(C=NC=C2)S(=O)(=O)NC(=O)NC(C)C

Data Sources

← Back to Dashboard← Back to Health

Brief citations

Torsemide (CAS 56211-40-6) https://chemicalindependence.com/chemical/56211-40-6/ PubChem: 41781. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/41781 FDA National Drug Code directory: CAS 56211-40-6. 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 293590 for CAS 56211-40-6. Reporting year: 2024. https://usatrade.census.gov/