Magnesium phosphate [USP]

Drug ingredient

CAS 10233-87-1

magnesium phosphate, tribasic, pentahydrate

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

Molecular structure of 10233-87-1 — 5 H₂O · 3 Mg²⁺

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.

5 FDA-registered drug labelers

Guna spa

Homeocare Laboratories

Jost Chemical Co.

JOST CHEMICAL POLAND SP Z O O

Siddha Flower Essences LLC

Why It Matters

Sectors

Health

Downstream Uses

Appears in 6 drug and cosmetic product listings (FDA).

•PMS Relief
•GUNA-Lympho
•GUNA-CELL
•GUNA-PMS
•Leg Cramps Relief
•Fear Less

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

$0.07/gAaron Chemicals LLC

CountryHong Kong

Pack$37.00 / 500 g

Purity97%

Vendors7 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

6 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.08	500 g	97%
A2B Chem LLC	United States	$0.12	250 g	97%
AA BLOCKS	United States	$0.15	250 g	97%
AK Scientific, Inc.	United States	$1.08	25 g	99%
Angene International Limited	United States	$3.08	25 g	99%
Angene	China → Hong Kong	$4266.67	30 mg	97%

Chemical Identity

CAS10233-87-1

PubChem CID23724945

DTXSIDDTXSID10144909

FormulaH10Mg3O13P2

Mol. Weight352.94 g/mol

SMILESO.O.O.O.O.[O-]P(=O)([O-])[O-].[O-]P(=O)([O-])[O-].[Mg+2].[Mg+2].[Mg+2]

Data Sources

PubChem · compound 23724945Retrieved 2026-04-07
FDA National Drug Code directoryRetrieved 2026-04-25
FDA National Drug Code directoryRetrieved 2026-04-07

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Brief citations

Magnesium phosphate [USP] (CAS 10233-87-1) https://chemicalindependence.com/chemical/10233-87-1/ PubChem: 23724945. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/23724945 FDA National Drug Code directory: CAS 10233-87-1. 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/