Calcium nitrate tetrahydrate

CAS 13477-34-4

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

Molecular structure of 13477-34-4 — 4 H₂O · 1 Ca²⁺

US productionCBI

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

Import value, 2024$21M

Top sourceNorway 31%

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 283429 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential

These shares come from HS customs code 283429, which covers 27 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).

NO 31%NorwayDE 15%GermanyMX 14%MexicoCA 8%CanadaCN 7%China

Netherlands
Italy
Switzerland
Portugal
Russia
Chile
Dominican Republic
Israel
Ukraine
Australia
Hong Kong
Czech Republic
Belgium
Taiwan

EPA-registered manufacturers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Chemmasters

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Ch Biotech

EPA-registered importers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Wego Chemical Group

Why It Matters

Sectors

AgriculturePaints & CoatingsPaper & Printing

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 3 sectors as 2 functional roles.

•Soil amendments (fertilizers) in Agriculture, Forestry, Fishing and Hunting (100%)Processing—incorporation into formulation, mixture, or reaction product
•Sealant (barrier) in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Soil amendments (fertilizers) in Pesticide, Fertilizer, and Other Agricultural Chemical ManufacturingNot Known or Reasonably Ascertainable

Chemical Identity

CAS13477-34-4

PubChem CIDNot recorded

DTXSIDDTXSID201016307

FormulaCaH8N2O10

Mol. Weight236.146 g/mol

SMILESO.O.O.O.[Ca++].[O-][N+]([O-])=O.[O-][N+]([O-])=O

Data Sources

EPA CompTox (DSSTox) · DTXSID201016307Retrieved 2026-10-04
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

Calcium nitrate tetrahydrate (CAS 13477-34-4) https://chemicalindependence.com/chemical/13477-34-4/ EPA CompTox (DSSTox): DTXSID201016307. Retrieved 2026-10-04. https://comptox.epa.gov/dashboard/chemical/details/DTXSID201016307 EPA Chemical Data Reporting: 13477-34-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 13477-34-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283429 for CAS 13477-34-4. Reporting year: 2024. https://usatrade.census.gov/