Trisodium hydrogen diphosphate

CAS 14691-80-6

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

Molecular structure of 14691-80-6 — 3 Na⁺

US productionCBI

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

Import value, 2024$95M

Top sourceCanada 30%

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 283539 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Zero · Imports Zero

These shares come from HS customs code 283539, which covers 21 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).

CA 30%CanadaDE 19%GermanyMY 17%MalaysiaCN 13%ChinaIT 9%Italy

Spain
Belgium
Japan
Poland
Taiwan
Switzerland
South Korea
Singapore
Netherlands
Denmark
United Kingdom
Slovakia

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.

Prayon

Why It Matters

Sectors

Food

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

•Intermediate in Food, beverage, and tobacco product manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS14691-80-6

PubChem CID161081

DTXSIDDTXSID70872534

FormulaHNa3O7P2

Mol. Weight243.92 g/mol

SMILESOP(=O)([O-])OP(=O)([O-])[O-].[Na+].[Na+].[Na+]

Data Sources

EPA CompTox (DSSTox) · DTXSID70872534Retrieved 2026-04-06
PubChem · compound 161081Retrieved 2026-04-06
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

Trisodium hydrogen diphosphate (CAS 14691-80-6) https://chemicalindependence.com/chemical/14691-80-6/ EPA CompTox (DSSTox): DTXSID70872534. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID70872534 PubChem: 161081. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/161081 EPA Chemical Data Reporting: 14691-80-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 14691-80-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283539 for CAS 14691-80-6. Reporting year: 2024. https://usatrade.census.gov/