Dimethyl (3-((hydroxymethyl)amino)-3-oxopropyl)phosphonate

CAS 20120-33-6

EPA’s 2023 records show zero U.S. production of this chemical.

US productionZero

Import value, 2024$598M

Import volumeCBI

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

Top sourceChina 89%

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. 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 293149 · basket

EPA reports by year

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

These shares come from HS customs code 293149, which covers 114 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 89%ChinaIN 4%IndiaCA 3%CanadaDE 2%GermanyAR 1%Argentina

United Kingdom
Italy
Mexico
Japan
Switzerland
Hong Kong
Ukraine
Finland
Sweden
Spain
Poland
Slovakia
Netherlands
Singapore
Taiwan
South Korea
Czech Republic

EPA-registered importers (2)

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

Archroma Management Gmbh · CH Switzerland

Archroma U.S

Why It Matters

Sectors

Textiles

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

•Flame retardant in Textiles, apparel, and leather manufacturing (100%)Processing—incorporation into article

Chemical Identity

CAS20120-33-6

PubChem CID29959

DTXSIDDTXSID9040215

FormulaC6H14NO5P

Mol. Weight211.15 g/mol

SMILESCOP(=O)(CCC(=O)NCO)OC

Data Sources

EPA CompTox (DSSTox) · DTXSID9040215Retrieved 2026-04-06
PubChem · compound 29959Retrieved 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

Dimethyl (3-((hydroxymethyl)amino)-3-oxopropyl)phosphonate (CAS 20120-33-6) https://chemicalindependence.com/chemical/20120-33-6/ EPA CompTox (DSSTox): DTXSID9040215. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9040215 PubChem: 29959. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/29959 EPA Chemical Data Reporting: 20120-33-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 20120-33-6. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293149 for CAS 20120-33-6. Reporting year: 2024. https://usatrade.census.gov/