calomel
Drug ingredientCAS 104923-33-3
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.
10 FDA-registered drug labelers
Apex Energetics Inc.
Bestmade Natural Products
Boiron
DNA Labs, Inc.
Hahnemann Laboratories, INC.
Homeocare Laboratories
Natural Creations, Inc
Seroyal USA
Uriel Pharmacy Inc.
Zorex
Why It Matters
Sectors
Health
Downstream Uses
Appears in 10 drug and cosmetic product listings (FDA).
- •Mercurius Dulcis
- •B08 Mucous Membranes
- •Vermasode
- •D-97
- •Bestmade Natural Products BM220
- •Parasode
- •D-109
- •Lycopodium Berberis
Show all 10
- •Allium CEPA PLEX
- •Tinnitus Relief
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
CAS104923-33-3
PubChem CID24956
DTXSIDDTXSID101374213
FormulaCl2Hg2
Mol. Weight472.09 g/mol
SMILESCl[Hg].Cl[Hg]
Data Sources
- PubChem · compound 24956Retrieved 2026-04-07
- FDA National Drug Code directoryRetrieved 2026-04-25
- FDA National Drug Code directoryRetrieved 2026-04-07
Brief citations
calomel (CAS 104923-33-3) https://chemicalindependence.com/chemical/104923-33-3/ PubChem: 24956. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/24956 FDA National Drug Code directory: CAS 104923-33-3. 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/