Zinc sulfate
Drug ingredientCAS 7733-02-0
This drug ingredient has classified U.S. production volumes. EPA withholds the number as confidential business information.
US productionCBI
Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.
Import value, 2024$179M
Top sourceMexico 46%
At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.
Why supply is unknownProduction 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 283329 · basket
EPA reports by year
- 2023
- US production Confidential · Imports Confidential
- 2019
- US production Confidential · Imports Confidential
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
Country of origin for US imports, from Census customs data (2024).
MX 46%MexicoCN 19%ChinaCA 11%CanadaIN 9%IndiaFI 4%Finland
- Italy
- South Africa
- Colombia
- United Kingdom
- Peru
- Czech Republic
- Taiwan
- Hong Kong
- Sweden
- Belgium
- Singapore
- Netherlands
- Hungary
- Switzerland
EPA-registered manufacturers (11)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Advanced Micronutrient Products
Cameron Chemical
Cameron Chemicals
Condy Holdings
J.R. Simplot
Show all 11
Luvata Fabrication North America
Macdermid
Nalco- An Ecolab
Nyrstar
Old Bridge Chemicals
Republic Conduit
EPA-registered importers (6)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Haifa North America
Honeywell International (123312)
United Mineral And Chemical
United Refining
Valagro/Syngenta Biologicals
Show all 6
Valudor Products
32 FDA-registered drug labelers
American Regent, Inc.
Amerisource Bergen Drug Corp.
AmerisourceBergen
Best Choice (Valu Merchandisers Company)
Better Living Brands LLC
Camber Pharmaceuticals, Inc.
CVS Pharmacy, Inc.
Discount Drug Mart
Discount Drug Mart, Inc.
Fresenius Kabi USA, LLC
Geiss, Destin & Dunn, Inc.
Gland Pharma Limited
HEB Grocery Company., LP
KC Pharmaceuticals, Inc.
Kroger
Meijer Distribution, Inc.
Meijer, Inc.
Piramal Critical Care Inc.
Prestige Brands Holdings, Inc.
PureTek Corporation
Quality Choice
Retail Business Services, LLC.
Rite Aid Corporation
Seton Pharmaceuticals
Somerset Therapeutics, LLC
Topco Associates LLC
United Natural Foods, Inc.
Walgreen Co.
Walmart, Inc.
WinCo Foods, LLC
Zydus Lifesciences Limited
Zydus Pharmaceuticals USA Inc.
Why It Matters
Sectors
HealthAgricultureFoodEnergyWaterElectronicsConstructionMetals & MiningTextilesPaper & PrintingCore Chemicals
Downstream Uses
Appears in 32 drug and cosmetic product listings (FDA).
- •Equate Multi-Symptom Relief Eye Drops
- •Equaline Multi-Symptom Eye Drops
- •ZINC Sulfate
- •GNP Eye Drops Seasonal Relief
- •Clear Eyes Maximum Itchy Eye Relief
- •Multrys
- •Rite Aid Multi-Symptom Relief Eye Drops
- •Signature Care Eye Drops A.C.
Show all 32
- •Kroger Eye Drops Seasonal Relief
- •Topcare Health Ultra Itch Relief Astringent Eye Drops
- •Se-Tan PLUS
- •PureVit DualFe Plus
- •Walgreens Multi-Symptom Relief Eye Drops
- •Quality Choice Eye Drops Irritation Relief
- •Clear Eyes Complete 7 Sympton Relief
- •CVS Multi-Symptom Eye Drops
- •Good Neighbor Pharmacy Eye Drops Multi-Symptom Relief
- •GoodSense Eye Drops Irritation Relief
- •CVS Astringent Eye
- •Meijer Multi-Symptom Relief
- •Equaline Eye Drops A.C.
- •Discount Drug Mart Eye Drops Multi-Symptom Relief
- •Best Choice Eye Drops A.C.
- •CareOne Itchy Relief Eye Drops 15mL
- •Meijer Seasonal Itching and Redness Relief
- •Medics Choice Eye Drops Seasonal Relief
- •Dexatran
- •Walgreens Eye Drops Seasonal Relief 15mL
- •Discount Drug Mart Eye Drops A.C.
- •Winco Irritation Relief Eye
- •HEB A.C. Eye Drops
- •Tralement
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 15 sectors as 12 functional roles.
- •Soil amendments (fertilizers) in Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Plating agent in Fabricated Metal Product Manufacturing (100%)Processing—incorporation into article
- •Soil amendments (fertilizers) in Primary Metal Manufacturing (99%)Processing as a reactant
- •Processing aids, specific to petroleum production in Petroleum Refineries (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Corrosion inhibitor in Utilities (100%)Processing as a reactant
- •Corrosion inhibitor in Oil and Gas Drilling, Extraction, and Support activities (8%)Use—non-incorporative activities
- •Corrosion inhibitor in All Other Chemical Product and Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Corrosion inhibitor in Paper Manufacturing (65%)Use—non-incorporative activities
- •Corrosion inhibitor in Petroleum Refineries (10%)Use—non-incorporative activities
- •Corrosion inhibitor in Food, beverage, and tobacco product manufacturing (4%)Use—non-incorporative activities
- •Corrosion inhibitor in Services (8%)Use—non-incorporative activities
- •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
- •Laboratory chemicals in Not Known or Reasonably AscertainableNot Known or Reasonably Ascertainable
- •Preservative in Wood Product ManufacturingProcessing as a reactant
- •Flavoring and nutrient in Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (25%)Processing as a reactant
- •Intermediate in Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (25%)Processing—incorporation into formulation, mixture, or reaction product
- •Adsorbent in Textiles, apparel, and leather manufacturingProcessing as a reactant
- •Coalescing agent in All Other Basic Inorganic Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Plating agent in Electrical Equipment, Appliance, and Component ManufacturingProcessing as a reactant
Chemical Identity
CAS7733-02-0
PubChem CID24424
DTXSIDDTXSID2040315
FormulaO4SZn
Mol. Weight161.4 g/mol
SMILES[O-]S(=O)(=O)[O-].[Zn+2]
Data Sources
- EPA CompTox (DSSTox) · DTXSID2040315Retrieved 2026-04-06
- PubChem · compound 24424Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- FDA National Drug Code directoryRetrieved 2026-04-07
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
Brief citations
Zinc sulfate (CAS 7733-02-0) https://chemicalindependence.com/chemical/7733-02-0/ EPA CompTox (DSSTox): DTXSID2040315. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2040315 PubChem: 24424. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/24424 EPA Chemical Data Reporting: 7733-02-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting FDA National Drug Code directory: CAS 7733-02-0. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 283329 for CAS 7733-02-0. Reporting year: 2024. https://usatrade.census.gov/