Dicopper sulphide

CAS 22205-45-4

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

Cu₂S159.2 g/mol

no molecular structure to draw

US productionCBI

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

Import value, 2024$23M

Top sourceAustria 29%

At least one company claimed its 2023 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: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 283090 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production 2.2M lb · Imports Zero

These shares come from HS customs code 283090, 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).

AT 29%AustriaDE 17%GermanyGB 13%United KingdomCN 9%ChinaIN 8%India

Philippines
Mexico
Netherlands
Malaysia
Singapore

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.

Montana Resources

Stillwater Mining

Why It Matters

Sectors

Metals & Mining

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

Used in 2 sectors as 1 functional role.

•Intermediate in Primary Metal ManufacturingProcessing as a reactant
•Intermediate in OtherProcessing as a reactant

Vendor Pricing

$0.48/gAA BLOCKS

CountryUnited States

Pack$238.00 / 500 g

Purity99%

Vendors10 available

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

9 more vendors

Vendor	Country	$/g	Pack	Purity
BLD Pharmatech Ltd.	China	$0.56	500 g	99%
A2B Chem LLC	United States	$0.56	25 g	99%
BLD Pharmatech GmbH	Germany	$0.57	100 g	99%
Ambeed, Inc.	United States	$0.59	100 g	99%
Aaron Chemicals LLC	Hong Kong	$0.60	100 g	96%
Angene Chemical	China → Hong Kong	$0.66	100 g	96%
BLD Pharmatech Co., Limited	United States	$0.80	25 g	99%
Angene International Limited	United States	$3.16	25 g	99%
Angene	China → Hong Kong	$4266.67	30 mg	96%

Chemical Identity

CAS22205-45-4

PubChem CID10130093

DTXSIDDTXSID0041804

FormulaCu2S

Mol. Weight159.16 g/mol

SMILES[S-2].[Cu+].[Cu+]

Data Sources

EPA CompTox (DSSTox) · DTXSID0041804Retrieved 2026-04-06
PubChem · compound 10130093Retrieved 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

Dicopper sulphide (CAS 22205-45-4) https://chemicalindependence.com/chemical/22205-45-4/ EPA CompTox (DSSTox): DTXSID0041804. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0041804 PubChem: 10130093. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/10130093 EPA Chemical Data Reporting: 22205-45-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 22205-45-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283090 for CAS 22205-45-4. Reporting year: 2024. https://usatrade.census.gov/