Monoammonium citrate

CAS 4450-94-6

U.S. production volumes are classified as confidential business information.

Molecular structure of 4450-94-6 — 1 NH₄⁺

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$130M

Top sourceIsrael 39%

At least one company claimed its 2019 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 291815 · basket

EPA reports by year

2019: US production Confidential · Imports Confidential

These shares come from HS customs code 291815, which covers 34 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).

IL 39%IsraelIN 14%IndiaDE 13%GermanyCN 10%ChinaIT 6%Italy

Brazil
Japan
Netherlands
Australia
Lithuania
United Kingdom
Norway
South Korea
Czech Republic
Lebanon
Ireland
Turkey
Estonia
Mexico
Switzerland

EPA-registered manufacturers (2)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Merck Kgaa · DE Germany

Versum Materials

Why It Matters

Sectors

Electronics

Downstream UsesNot recorded

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

Industrial Uses

•Semiconductor and photovoltaic agent in Computer and Electronic Product Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$1.32/gAaron Chemicals LLC

CountryHong Kong

Pack$33.00 / 25 g

Purity95%

Vendors6 available

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

5 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$1.40	25 g	95%
A2B Chem LLC	United States	$4.80	25 g	95%
AA BLOCKS	United States	$5.60	25 g	95%
Labotest KG	Germany	$453.00	1000 mg	90%
Angene	China → Hong Kong	$4266.67	30 mg	95%

Chemical Identity

CAS4450-94-6

PubChem CID165228

DTXSIDDTXSID50893545

FormulaC6H11NO7

Mol. Weight209.15 g/mol

SMILESC(C(=O)O)C(CC(=O)[O-])(C(=O)O)O.[NH4+]

Data Sources

EPA CompTox (DSSTox) · DTXSID50893545Retrieved 2026-04-06
PubChem · compound 165228Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Monoammonium citrate (CAS 4450-94-6) https://chemicalindependence.com/chemical/4450-94-6/ EPA CompTox (DSSTox): DTXSID50893545. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID50893545 PubChem: 165228. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/165228 EPA Chemical Data Reporting: 4450-94-6. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 4450-94-6. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291815 for CAS 4450-94-6. Reporting year: 2024. https://usatrade.census.gov/