Phosphorothioic trichloride

CAS 3982-91-0

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

US productionZero

Import value, 2024$154M

Import volumeCBI

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

Top sourceGermany 55%

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 285390 · basket

EPA reports by year

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

These shares come from HS customs code 285390, which covers 46 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).

DE 55%GermanyCA 21%CanadaJP 6%JapanGB 4%United KingdomKR 3%South Korea

Spain
Taiwan
Netherlands
Philippines
Sweden
El Salvador
Singapore
Belgium
Brazil
Austria
Israel
Czech Republic
Slovakia
Dominican Republic
Guyana
Argentina
Hong Kong
Indonesia
Colombia

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.

American Vanguard

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

Used in 2 sectors as 1 functional role.

•Intermediate in Agriculture, Forestry, Fishing and Hunting (100%)Processing as a reactant
•Intermediate in Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (100%)Processing as a reactant

Vendor Pricing

$0.28/gSigma-Aldrich (Rush Stock)

CountryGermany

Pack$396.73 / 1.4 kg

Purity98%

Vendors3 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

2 more vendors

Vendor	Country	$/g	Pack	Purity
Sigma-Aldrich	Germany	$0.28	1.4 kg	98%
Labotest KG	Germany	$217.80	5000 mg	90%

Chemical Identity

CAS3982-91-0

PubChem CID19883

DTXSIDDTXSID3063253

FormulaCl3PS

Mol. Weight169.4 g/mol

SMILESP(=S)(Cl)(Cl)Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID3063253Retrieved 2026-04-06
PubChem · compound 19883Retrieved 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

Phosphorothioic trichloride (CAS 3982-91-0) https://chemicalindependence.com/chemical/3982-91-0/ EPA CompTox (DSSTox): DTXSID3063253. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3063253 PubChem: 19883. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/19883 EPA Chemical Data Reporting: 3982-91-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 3982-91-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 285390 for CAS 3982-91-0. Reporting year: 2024. https://usatrade.census.gov/