unithiol
Drug ingredientCAS 4076-02-2
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.
2 FDA-registered drug labelers
Medisca Inc.
shanghai Wonder Pharmaceutical Co.,Ltd
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
Vendor Pricing
$25.60/gCombi-Blocks, Inc.
CountryUnited States
Pack$640.00 / 25 g
Purity97%
Vendors14 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
13 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 |
|---|---|---|---|---|
| A2B Chem LLC | United States | $27.20 | 25 g | 95% |
| AA BLOCKS | United States | $28.72 | 25 g | 95% |
| Aaron Chemicals LLC | Hong Kong | $29.40 | 5 g | 95% |
| Angene Chemical | China → Hong Kong | $33.80 | 5 g | 95% |
| Ambeed, Inc. | United States | $63.60 | 5 g | 98% |
| Specs | Netherlands | $931.70 | 100 mg | 90% |
| Otava, Ltd. (2 weeks) | Ukraine | $2724.00 | 50 mg | 90% |
| Princeton BioMolecular Research (SC) | United States | $2900.00 | 100 mg | 90% |
| Vitas M Chemical Limited | Hong Kong | $3170.00 | 100 mg | 90% |
| ChemDiv, Inc. | United States | $4070.00 | 100 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 95% |
| Interbioscreen | Hong Kong | $4864.50 | 100 mg | 95% |
| TimTec, LLC (back-ordered) | United States | $32000.00 | 15 mg | 94% |
Chemical Identity
CAS4076-02-2
PubChem CID2724039
DTXSIDDTXSID40958410
FormulaC3H7NaO3S3
Mol. Weight210.3 g/mol
SMILESC(C(CS(=O)(=O)[O-])S)S.[Na+]
Data Sources
- PubChem · compound 2724039Retrieved 2026-04-07
- FDA National Drug Code directoryRetrieved 2026-04-25
- FDA National Drug Code directoryRetrieved 2026-04-07
Brief citations
unithiol (CAS 4076-02-2) https://chemicalindependence.com/chemical/4076-02-2/ PubChem: 2724039. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/2724039 FDA National Drug Code directory: CAS 4076-02-2. 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/