Methanesulfonyl chloride

CAS 124-63-0

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$9M

Top sourceChina 53%

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 290499 · basket

EPA reports by year

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

These shares come from HS customs code 290499, which covers 112 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 53%ChinaIN 30%IndiaUA 4%UkraineTW 4%TaiwanIT 4%Italy

United Kingdom
Japan
Canada
Czech Republic
South Korea
Lithuania
Latvia
Russia

EPA-registered importers (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

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 ManufacturingProcessing as a reactant

Vendor Pricing

$217.80/gLabotest KG

CountryGermany

Pack$1089.00 / 5000 mg

Purity90%

Vendors1 available

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

Chemical Identity

CAS124-63-0

PubChem CID31297

DTXSIDDTXSID1021615

FormulaCH3ClO2S

Mol. Weight114.55 g/mol

SMILESCS(=O)(=O)Cl

Data Sources

EPA CompTox (DSSTox) · DTXSID1021615Retrieved 2026-04-06
PubChem · compound 31297Retrieved 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

Methanesulfonyl chloride (CAS 124-63-0) https://chemicalindependence.com/chemical/124-63-0/ EPA CompTox (DSSTox): DTXSID1021615. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1021615 PubChem: 31297. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/31297 EPA Chemical Data Reporting: 124-63-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 124-63-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 290499 for CAS 124-63-0. Reporting year: 2024. https://usatrade.census.gov/