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Zinc cyanide (Zn(CN)2)

CAS 557-21-1

Molecular structure of 557-21-1
1 Zn²⁺
US productionNot reported
Import value, 2024$3M
Top sourceGermany 38%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

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

Where It Comes From

Customs basis: HS 283719 · basket

These shares come from HS customs code 283719, which covers 8 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
DE 38%GermanyCZ 25%Czech RepublicKR 19%South KoreaJP 16%JapanCN 2%China

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS557-21-1
PubChem CIDNot recorded
DTXSIDDTXSID6024385
FormulaC2N2Zn
Mol. Weight117.42 g/mol
SMILES[Zn++].[C-]#N.[C-]#N

Data Sources

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Brief citations

Zinc cyanide (Zn(CN)2) (CAS 557-21-1) https://chemicalindependence.com/chemical/557-21-1/ EPA TSCA Inventory: CAS 557-21-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 283719 for CAS 557-21-1. Reporting year: 2024. https://usatrade.census.gov/