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Ferrous sulfate monohydrate

CAS 17375-41-6

Molecular structure of 17375-41-6
1 Fe²⁺ · 1 H₂O
US productionNot reported
Import value, 2024$179M
Top sourceMexico 46%

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 283329 · basket

EPA reports by year
2023
US production Not published · Imports Not published

These shares come from HS customs code 283329, which covers 36 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
MX 46%MexicoCN 19%ChinaCA 11%CanadaIN 9%IndiaFI 4%Finland
Domestic parents -- activity not disclosed (1)
Wilbur-Ellis Holdings Ii

Why It Matters

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

Chemical Identity

CAS17375-41-6
PubChem CIDNot recorded
DTXSIDDTXSID9034608
FormulaFeH2O5S
Mol. Weight169.92 g/mol
SMILESO.[Fe++].[O-]S([O-])(=O)=O

Data Sources

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Brief citations

Ferrous sulfate monohydrate (CAS 17375-41-6) https://chemicalindependence.com/chemical/17375-41-6/ EPA CompTox (DSSTox): DTXSID9034608. Retrieved 2026-10-04. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9034608 EPA Chemical Data Reporting: 17375-41-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283329 for CAS 17375-41-6. Reporting year: 2024. https://usatrade.census.gov/