liothyronine
Drug ingredientThis chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
Where It Comes From
16 FDA-registered drug labelers
A-S Medication Solutions
Acella Pharmaceuticals, LLC
Apex Energetics Inc.
Asclemed USA, Inc.
Bryant Ranch Prepack
Calvin Scott & Co Inc.
Deseret Biologicals
Deseret Biologicals, Inc.
DIRECT RX
Dr. Donna Restivo DC
Genus Lifesciences
Northwind Health Company, LLC
NuCare Pharmaceuticals,Inc,
Pro Weight Loss Inc.
The Wellness Center for Research and Education
Trifluent Pharma, LLC
Why It Matters
Sectors
Health
Downstream Uses
Appears in 15 drug and cosmetic product listings (FDA).
- •NP Thyroid 60
- •NP Thyroid
- •EvexiTHROID
- •NP Thyroid 30
- •D3 Organ Support
- •NP Thyroid 90
- •Energize
- •NP Thyroid 15
Show all 15
- •RenThyroid
- •NP Thyroid 120
- •Detox III
- •Thyro Support
- •Thyro T3 Rescue
- •R06 Thyroid
- •Thyroid Formula
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
Vendor Pricing
$14.32/gA2B Chem LLC
CountryUnited States
Pack$358.00 / 25 g
Purity98%
Vendors27 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
26 more vendors
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| Aaron Chemicals LLC | Hong Kong | $17.24 | 100 g | 98% |
| Angene Chemical | China → Hong Kong | $19.72 | 100 g | 98% |
| Combi-Blocks, Inc. | United States | $24.60 | 25 g | 97% |
| AK Scientific Specialized | United States | $25.60 | 25 g | 95% |
| AA BLOCKS | United States | $27.60 | 25 g | 98% |
| AK Scientific, Inc. | United States | $34.28 | 25 g | 97% |
| Angene International Limited | United States | $40.68 | 25 g | 95% |
| ALFA AESAR | Germany | $148.08 | 5 g | 95% |
| TargetMol Chemicals US | United States | $163.00 | 1 g | 99.33% |
| MedKoo Biosciences, Inc | United States | $165.00 | 10 g | 98% |
| TargetMol Chemicals EU | Austria | $212.00 | 500 mg | 99.33% |
| Molnova | China | $214.00 | 500 mg | 99% |
| MedChemExpress MCE | Sweden | $260.15 | 1 g | 99.82% |
| Cayman Europe | Estonia | $392.70 | 1 g | 98% |
| Labotest KG | Germany | $453.00 | 1000 mg | 90% |
| Sigma-Aldrich (Rush Stock) | Germany | $468.42 | 5 g | 95% |
| Sigma-Aldrich | Germany | $468.42 | 5 g | 95% |
| TargetMol Chemicals | China → United States | $480.00 | 100 mg | 99.33% |
| Apexbio Technology LLC | United States | $2000.00 | 25 mg | 98% |
| Otava, Ltd. (2 weeks) | Ukraine | $2724.00 | 50 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 98% |
| Ramidus AB | Sweden | $6720.00 | 50 mg | — |
| A2B Chem LLC (1 week) | United States | $46000.00 | 10 mg | 98% |
| AA BLOCKS (1 week) | United States | $50800.00 | 10 mg | 98% |
| A2B Chem LLC (2 weeks) | United States | $356600.00 | 5 mg | 97% |
| AA BLOCKS (2 weeks) | United States | $380600.00 | 5 mg | 97% |
Chemical Identity
CAS6893-02-3
PubChem CID5920
DTXSIDDTXSID8023216
FormulaC15H12I3NO4
Mol. Weight650.97 g/mol
SMILESC1=CC(=C(C=C1OC2=C(C=C(C=C2I)CC(C(=O)O)N)I)I)O
Data Sources
59202026-04-07
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/name/liothyronine/cids/JSON
Archive: data/sources/pubchem_name/liothyronine.json
CAS 6893-02-32026-04-25
https://open.fda.gov/data/ndc/
Archive: data/sources/fda/ndc/ndc.json
bulk match2026-04-07
https://open.fda.gov/data/ndc/
Archive: data/sources/fda/ndc/ndc.json