Bis(2-chloroethyl) 2-chloroethylphosphonate

CAS 6294-34-4

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

Import volumeZero

Top sourceChina 84%

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 293159 · basket

EPA reports by year

2023: US production Confidential · Imports Zero
2019: US production 8.7M lb · Imports Zero

These shares come from HS customs code 293159, which covers 10 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 84%ChinaCA 12%CanadaDE 1%GermanyCH 1%SwitzerlandAM 1%Armenia

United Kingdom
India
Poland
Ukraine
Norway
Israel
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.

Lanxess

Why It Matters

Sectors

Agriculture

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 Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (100%)Processing as a reactant

Chemical Identity

CAS6294-34-4

PubChem CID80518

DTXSIDDTXSID8027618

FormulaC6H12Cl3O3P

Mol. Weight269.5 g/mol

SMILESC(CCl)OP(=O)(CCCl)OCCCl

Data Sources

EPA CompTox (DSSTox) · DTXSID8027618Retrieved 2026-04-06
PubChem · compound 80518Retrieved 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

Bis(2-chloroethyl) 2-chloroethylphosphonate (CAS 6294-34-4) https://chemicalindependence.com/chemical/6294-34-4/ EPA CompTox (DSSTox): DTXSID8027618. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8027618 PubChem: 80518. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/80518 EPA Chemical Data Reporting: 6294-34-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 6294-34-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293159 for CAS 6294-34-4. Reporting year: 2024. https://usatrade.census.gov/