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Calcium dihydrogen phosphate hydroxide (1/1/1)

Drug ingredient

CAS 53801-70-0

calcium phosphate, dibasic, anhydrous

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

Molecular structure of 53801-70-0
1 Ca²⁺ · 1 H₂O
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 unknown

Where It Comes From

EPA and Census publish no US supply data for this chemical.

3 FDA-registered drug labelers
Jost Chemical Co.
JOST CHEMICAL POLAND SP Z O O
Seroyal USA

Why It Matters

Sectors
Health
Downstream Uses

Appears in 2 drug and cosmetic product listings (FDA).

  • •Melange combination
  • •Medullosseinum PLEX
FDA Shortage Status
No FDA shortage records

Chemical Identity

CAS53801-70-0
PubChem CID21651365
DTXSIDDTXSID70788464
FormulaCaH3O5P
Mol. Weight154.07 g/mol
SMILESO.OP(=O)([O-])[O-].[Ca+2]

Data Sources

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Brief citations

Calcium dihydrogen phosphate hydroxide (1/1/1) (CAS 53801-70-0) https://chemicalindependence.com/chemical/53801-70-0/ PubChem: 21651365. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/21651365 FDA National Drug Code directory: CAS 53801-70-0. 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/