magnesium acetate tetrahydrate

Drug ingredient

CAS 16674-78-5

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

Molecular structure of 16674-78-5 — 4 H₂O · 1 Mg²⁺

US productionNot reported

Import value, 2024$64M

Top sourceNetherlands 37%

EPA lists this chemical for 2023 but publishes zero or no volume for both production and imports.

Why supply is unknown

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 291529 · basket

EPA reports by year

2023: US production Not published · Imports Not published

These shares come from HS customs code 291529, which covers 45 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

NL 37%NetherlandsCN 16%ChinaCA 15%CanadaIT 7%ItalyGB 5%United Kingdom

Finland
Belgium
Lithuania
Czech Republic
Switzerland
Spain
Turkey
Sweden
Singapore
Slovakia
Armenia

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Aurorium

1 FDA-registered drug labeler

Hahnemann Laboratories, INC.

Why It Matters

Sectors

Health

Downstream Uses

Appears in 1 drug and cosmetic product listings (FDA).

•Magnesia Acetica

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

$0.01/gAngene Chemical

CountryChina (registered: Hong Kong)

Pack$6.00 / 500 g

Purity98%

Vendors12 available

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

11 more vendors

Vendor	Country	$/g	Pack	Purity
BLD Pharmatech GmbH	Germany	$0.03	1 kg	99%
BLD Pharmatech Ltd.	China	$0.03	1 kg	99%
A2B Chem LLC	United States	$0.04	10 kg	99%
AA BLOCKS	United States	$0.05	10 kg	99%
Fluorochem EU	Germany	$0.06	1 kg	95%
Fluorochem UK	United Kingdom	$0.07	1 kg	95%
BLD Pharmatech Co., Limited	United States	$0.11	1 kg	99%
Ambeed, Inc.	United States	$0.11	1 kg	99%
Angene International Limited	United States	$0.29	500 g	98%
TargetMol Chemicals	China → United States	$29.00	1 g	99%
Angene	China → Hong Kong	$4266.67	30 mg	98%

Chemical Identity

CAS16674-78-5

PubChem CID134717

DTXSIDDTXSID60168170

FormulaC4H14MgO8

Mol. Weight214.45 g/mol

SMILESCC(=O)[O-].CC(=O)[O-].O.O.O.O.[Mg+2]

Data Sources

PubChem · compound 134717Retrieved 2026-04-07
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
FDA National Drug Code directoryRetrieved 2026-04-07
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

magnesium acetate tetrahydrate (CAS 16674-78-5) https://chemicalindependence.com/chemical/16674-78-5/ PubChem: 134717. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/134717 EPA Chemical Data Reporting: 16674-78-5. 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/ US Census international trade: HS 291529 for CAS 16674-78-5. Reporting year: 2024. https://usatrade.census.gov/