Manganese dipropionate

CAS 21129-18-0

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

Molecular structure of 21129-18-0 — 1 Mn²⁺

US productionCBI

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

Import value, 2024$30M

Top sourceCanada 27%

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 291550 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production 18.6K lb · Imports Zero

These shares come from HS customs code 291550, which covers 61 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 27%CanadaCN 14%ChinaIT 13%ItalyMX 11%MexicoIN 10%India

Slovakia
Sweden
Argentina
Switzerland

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.

Polymer Additves

Why It Matters

Sectors

Plastics & Rubber

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

•Drier in Plastics Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS21129-18-0

PubChem CID12054679

DTXSIDDTXSID8029319

FormulaC6H10MnO4

Mol. Weight201.08 g/mol

SMILESCCC(=O)[O-].CCC(=O)[O-].[Mn+2]

Data Sources

EPA CompTox (DSSTox) · DTXSID8029319Retrieved 2026-04-06
PubChem · compound 12054679Retrieved 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

Manganese dipropionate (CAS 21129-18-0) https://chemicalindependence.com/chemical/21129-18-0/ EPA CompTox (DSSTox): DTXSID8029319. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8029319 PubChem: 12054679. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/12054679 EPA Chemical Data Reporting: 21129-18-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 21129-18-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 291550 for CAS 21129-18-0. Reporting year: 2024. https://usatrade.census.gov/