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Copper(II) sulfate, pentahydrate

CAS 7758-99-8

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

Molecular structure of 7758-99-8
5 H₂O · 1 Cu²⁺
US productionCBI
Import value, 2024$104M
Top sourceMexico 60%

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 283325 · narrow

EPA reports by year
2023
US production Confidential · Imports Confidential

These shares come from HS customs code 283325, which covers 5 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
MX 60%MexicoTW 12%TaiwanCA 8%CanadaPE 8%PeruBR 4%Brazil
EPA-registered manufacturers (3)
Wieland-Werke Ag · DE Germany
Macdermid
Wieland Holdings

Why It Matters

Sectors
AgricultureMetals & MiningTextilesCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 4 sectors as 5 functional roles.

  • •Soil amendments (fertilizers) in Pesticide, Fertilizer, and Other Agricultural Chemical ManufacturingNot Known or Reasonably Ascertainable
  • •Etching agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Chelating agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Plating agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Pigment in Synthetic Dye and Pigment ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Plating agent in Other (100%)Processing as a reactant

Chemical Identity

CAS7758-99-8
PubChem CIDNot recorded
DTXSIDDTXSID9031066
FormulaCuH10O9S
Mol. Weight249.68 g/mol
SMILESO.O.O.O.O.[Cu++].[O-]S([O-])(=O)=O

Data Sources

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Brief citations

Copper(II) sulfate, pentahydrate (CAS 7758-99-8) https://chemicalindependence.com/chemical/7758-99-8/ EPA CompTox (DSSTox): DTXSID9031066. Retrieved 2026-10-04. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9031066 EPA Chemical Data Reporting: 7758-99-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 7758-99-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283325 for CAS 7758-99-8. Reporting year: 2024. https://usatrade.census.gov/