Deuterium oxide

CAS 7789-20-0

Companies reported imports and no US production of this chemical to EPA for 2023.

H₂O20.0 g/mol

no molecular structure to draw

US productionZero

Import value, 2024$48M

Import volume110.0K lb

Import dependency100%

Top sourceCanada 70%

Production is reported production, not a complete census of factories. Production reporting year: 2023.

Deuterium oxide · US import value by year

2013: $17M · Peak 2023: $70M · 2024: $48M · 2025: $65M

Where It Comes From

Customs basis: HS 284510 · exact

EPA reports by year

2023: US production Zero · Imports 110.0K lb
2019: US production Zero · Imports Zero

Source Countries

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

CA 70%CanadaIN 19%IndiaIL 7%IsraelDE 2%GermanyJP 1%Japan

Italy
South Korea
China
United Kingdom
Belgium

EPA-registered importers (2)

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

Linde Plc · IE Ireland

Linde

Why It Matters

Sectors

Energy

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

•Intermediate in Industrial Gas Manufacturing (100%)Processing as a reactant

Vendor Pricing

$0.01/gAaron Chemicals LLC

CountryHong Kong

Pack$7.00 / 500 g

PurityNot recorded

Vendors8 available

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

7 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$0.02	500 g	—
Fulfilled by Molport	Latvia	$0.20	25 g	—
Sigma-Aldrich (Rush Stock)	Germany	$3.55	100 g	—
Sigma-Aldrich	Germany	$3.55	100 g	—
A2B Chem LLC	United States	$44.00	25 g	—
AA BLOCKS	United States	$49.20	25 g	—
Angene	China → Hong Kong	$4266.67	30 mg	—

Chemical Identity

CAS7789-20-0

PubChem CID24602

DTXSIDDTXSID4051243

FormulaH2O

Mol. Weight20.028 g/mol

SMILESO

Data Sources

EPA CompTox (DSSTox) · DTXSID4051243Retrieved 2026-04-06
PubChem · compound 24602Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Deuterium oxide (CAS 7789-20-0) https://chemicalindependence.com/chemical/7789-20-0/ EPA CompTox (DSSTox): DTXSID4051243. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID4051243 PubChem: 24602. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/24602 EPA Chemical Data Reporting: 7789-20-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 7789-20-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 284510 for CAS 7789-20-0. Reporting year: 2024. https://usatrade.census.gov/