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4-(Acetylamino)benzenesulfonyl chloride

CAS 121-60-8

Companies reported imports and no US production of this chemical to EPA for 2019.

Molecular structure of 121-60-8
US productionZero
Import value, 2024$872M
Import volume39.7K lb
Import dependency100%
Top sourceSwitzerland 44%

Production is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

4-(Acetylamino)benzenesulfonyl chloride · US import value by year
$727M2013$1.3B2022$872M2024$833M2025

2013: $727M · Peak 2022: $1.3B · 2024: $872M · 2025: $833M

Where It Comes From

Customs basis: HS 292429 · basket

EPA reports by year
2023
US production Not published · Imports Not published
2019
US production Zero · Imports 39.7K lb

These shares come from HS customs code 292429, which covers 203 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CH 44%SwitzerlandCN 19%ChinaIN 12%IndiaJP 9%JapanIE 6%Ireland
Domestic parents -- activity not disclosed (1)
Cellmark Usa, Llc.
EPA-registered importers (2)
Mitsui & · JP Japan
Mitsui & Co. (U. S. A.)

Why It Matters

Sectors
Plastics & Rubber
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

  • •Polymerization promoter in Plastics Product Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.02/gAaron Chemicals LLC
CountryHong Kong
Pack$12.00 / 500 g
Purity98%
Vendors29 available

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

28 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina → Hong Kong$0.03500 g98%
AK Scientific SpecializedUnited States$0.071 kg95%
ChemsceneUnited States$0.081 kg—
AK Scientific, Inc.United States$0.091 kg98%
Apollo Scientific UKUnited Kingdom$0.101 kg—
A2B Chem LLCUnited States$0.11500 g98%
Fluorochem EUGermany$0.11100 g95%
Sigma-Aldrich (Rush Stock)Germany$0.121 kg98%
Sigma-AldrichGermany$0.121 kg98%
Ambeed, Inc.United States$0.13500 g98%
AA BLOCKSUnited States$0.13500 g98%
Combi-Blocks, Inc.United States$0.251 kg95%
AstaTech, IncUnited States$0.5850 g95%
SynthonixUnited States$1.1225 g95%
Angene International LimitedUnited States$2.4025 g98%
ACINTSUnited Kingdom$8.065 g95%
Fluorochem UKUnited Kingdom$8.581 g95%
ChemDiv, Inc.United States$18.0050 g90%
InterbioscreenHong Kong$34.0010 g95%
Labotest KGGermany$217.805000 mg90%
Otava, Ltd.Ukraine$460.00250 mg90%
Otava, Ltd. (2 weeks)Ukraine$2724.0050 mg90%
Key Organics Ltd.United Kingdom$2740.0050 mg98%
Princeton BioMolecular Research (SC)United States$2900.00100 mg90%
Vitas M Chemical LimitedHong Kong$3170.00100 mg90%
AngeneChina → Hong Kong$4266.6730 mg98%
AsinexNetherlands$6461.40100 mg90%
TimTec, LLC (back-ordered)United States$32000.0015 mg94%

Chemical Identity

CAS121-60-8
PubChem CID8481
DTXSIDDTXSID8026981
FormulaC8H8ClNO3S
Mol. Weight233.67 g/mol
SMILESCC(=O)NC1=CC=C(C=C1)S(=O)(=O)Cl

Data Sources

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Brief citations

4-(Acetylamino)benzenesulfonyl chloride (CAS 121-60-8) https://chemicalindependence.com/chemical/121-60-8/ EPA CompTox (DSSTox): DTXSID8026981. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID8026981 PubChem: 8481. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/8481 EPA Chemical Data Reporting: 121-60-8. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 121-60-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 292429 for CAS 121-60-8. Reporting year: 2024. https://usatrade.census.gov/