acetylcysteine
Drug ingredientThis chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.
Where It Comes From
24 FDA-registered drug labelers
American Regent, Inc.
Cameron Pharmaceuticals
Cardinal Health 107, LLC
Cumberland Pharmaceuticals Inc.
Eugia US LLC
F.I.S. Fabbrica Italiana Sintetici S.P.A.
Fresenius Kabi USA, LLC
Fujian South Pharmaceutical Co., Ltd.
Glenmark Pharmaceuticals Inc., USA
Guna spa
Hikma Pharmaceuticals USA Inc.
Hospira, Inc.
Indoco Remedies Limited
Moehs Catalana SL
Nippon Rika Co., Ltd.
ONESOURCE SPECIALTY PHARMA LIMITED
Padagis US LLC
PharmaZell GmbH
Professional Compounding Centers of America dba PCCA
PureTek Corporation
Sagent Pharmaceuticals
Somerset Therapeutics, LLC
Spectrum Laboratory Products, Inc.
Xellia Pharmaceuticals USA LLC
Why It Matters
Sectors
Health
Downstream Uses
Appears in 4 drug and cosmetic product listings (FDA).
- •Acetylcysteine
- •ANTI AGE Stress
- •Folcyteine
- •Acetadote
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
$3.36/gAA BLOCKS
CountryUnited States
Pack$84.00 / 25 g
Purity95%
Vendors18 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
17 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 | $3.36 | 25 g | 95% |
| Aaron Chemicals LLC | Hong Kong | $3.44 | 25 g | 97% |
| Angene Chemical | China → Hong Kong | $3.48 | 50 g | 97% |
| Ambeed, Inc. | United States | $4.20 | 25 g | 97% |
| Combi-Blocks, Inc. | United States | $4.20 | 25 g | 95% |
| BLD Pharmatech Ltd. | China | $4.60 | 25 g | 97% |
| Chemscene | United States | $5.04 | 25 g | — |
| Angene International Limited | United States | $5.08 | 25 g | 95% |
| BLD Pharmatech Co., Limited | United States | $5.10 | 10 g | 97% |
| BLD Pharmatech GmbH | Germany | $5.60 | 5 g | 97% |
| Fluorochem EU | Germany | $5.76 | 25 g | 97% |
| Apexbio Technology LLC | United States | $6.60 | 10 g | 99.51% |
| Fulfilled by Molport | Latvia | $40.00 | 100 mg | 97% |
| AstaTech, Inc | United States | $41.00 | 5 g | 95% |
| Life Chemicals Inc. | Ukraine → Canada | $72.00 | 250 mg | 95% |
| Otava, Ltd. (2 weeks) | Ukraine | $2724.00 | 50 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 97% |
Chemical Identity
CAS616-91-1
PubChem CID12035
DTXSIDDTXSID5020021
FormulaC5H9NO3S
Mol. Weight163.2 g/mol
SMILESCC(=O)NC(CS)C(=O)O
Data Sources
120352026-04-07
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/name/acetylcysteine/cids/JSON
Archive: data/sources/pubchem_name/acetylcysteine.json
CAS 616-91-12026-04-24
https://www.epa.gov/tsca-inventory
Archive: data/sources/tsca/tsca_inventory.csv
bulk match2026-04-07
https://open.fda.gov/data/ndc/
Archive: data/sources/fda/ndc/ndc.json