Pyridinium acetate

CAS 5153-63-9

Acetic acid, compd. with pyridine (1:1)

U.S. production volumes are classified 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$16M

Top sourceIndia 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 293331 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential

These shares come from HS customs code 293331, which covers 11 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).

IN 60%IndiaKR 13%South KoreaCA 10%CanadaCN 7%ChinaJP 3%Japan

Hong Kong
Germany
Malaysia
Sweden
Vietnam

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.

Arkema

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 Chemical Product and Preparation Manufacturing (100%)Processing as a reactant

Chemical Identity

CAS5153-63-9

PubChem CIDNot recorded

DTXSIDDTXSID2063719

FormulaC7H9NO2

Mol. Weight139.154 g/mol

SMILESCC(O)=O.C1=CC=NC=C1

Data Sources

EPA TSCA InventoryRetrieved 2026-04-29
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

Pyridinium acetate (CAS 5153-63-9) https://chemicalindependence.com/chemical/5153-63-9/ EPA TSCA Inventory: CAS 5153-63-9. Retrieved 2026-04-29. https://www.epa.gov/tsca-inventory EPA Chemical Data Reporting: 5153-63-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 5153-63-9. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293331 for CAS 5153-63-9. Reporting year: 2024. https://usatrade.census.gov/