Arsenic trisulfide
Drug ingredientCAS 1303-33-9
Companies reported imports and no US production of this drug ingredient to EPA for 2023.
US productionZero
Import volume103 lb
Import dependency100%
Top sourceNo public record
Production is reported production, not a complete census of factories. Production reporting year: 2023.
Where It Comes From
EPA reports by year
- 2023
- US production Zero · Imports 103 lb
EPA-registered importers (1)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Tenneco Brake
3 FDA-registered drug labelers
Bestmade Natural Products
Boiron
Hahnemann Laboratories, Inc.
Why It Matters
Sectors
HealthTransportation
Downstream Uses
Appears in 2 drug and cosmetic product listings (FDA).
- •Arsenicum Sulphuratum Flavum
- •Bestmade Natural Products BM66
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
Chemical Identity
CAS1303-33-9
PubChem CID71586773
DTXSIDDTXSID50274153
FormulaAs2S3
Mol. Weight246 g/mol
SMILESS1[As]2S[As]1S2
Data Sources
- PubChem · compound 71586773Retrieved 2026-04-07
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- FDA National Drug Code directoryRetrieved 2026-04-07
Brief citations
Arsenic trisulfide (CAS 1303-33-9) https://chemicalindependence.com/chemical/1303-33-9/ PubChem: 71586773. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/71586773 EPA Chemical Data Reporting: 1303-33-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/