Formic acid, cesium salt (1:1)

CAS 3495-36-1

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

Molecular structure of 3495-36-1 — 1 Cs⁺

US productionCBI

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

Import value, 2024$26M

Top sourceChina 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 291512 · basket

EPA reports by year

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

These shares come from HS customs code 291512, which covers 15 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).

CN 31%ChinaDE 24%GermanyCA 17%CanadaSE 16%SwedenTR 3%Turkey

Brazil
Switzerland
Colombia
Netherlands
United Kingdom

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.

Chemours

Why It Matters

Sectors

Core Chemicals

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 All Other Basic Inorganic Chemical Manufacturing (100%)Processing as a reactant

Chemical Identity

CAS3495-36-1

PubChem CID23663999

DTXSIDDTXSID50883981

FormulaCHCsO2

Mol. Weight177.923 g/mol

SMILESC(=O)[O-].[Cs+]

Data Sources

EPA CompTox (DSSTox) · DTXSID50883981Retrieved 2026-04-06
PubChem · compound 23663999Retrieved 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

Formic acid, cesium salt (1:1) (CAS 3495-36-1) https://chemicalindependence.com/chemical/3495-36-1/ EPA CompTox (DSSTox): DTXSID50883981. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID50883981 PubChem: 23663999. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/23663999 EPA Chemical Data Reporting: 3495-36-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 3495-36-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291512 for CAS 3495-36-1. Reporting year: 2024. https://usatrade.census.gov/