p-Toluenesulphonyl isocyanate

U.S. production volumes are classified as confidential business information.

Molecular structure of 4083-64-1
US ProductionCBI
Import Value$2.0B
Top SourceIreland 63%

The EPA did not publish how much of this chemical companies made or imported, or marked that amount confidential. Without that volume, ACID cannot calculate import dependency.

Where It Comes From

Customs basis: HS 293590 · basket

These shares come from HS customs code 293590, which covers 17 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries
IE 63%IrelandSG 14%SingaporeIN 7%IndiaCN 7%ChinaCH 2%Switzerland
EPA-registered manufacturers (1)
Vandemark Chemical
EPA-registered importers (2)
Aceto Us
Old World Industries

Why It Matters

Sectors
ConstructionPlastics & RubberPaints & Coatings
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 3 sectors as 4 functional roles.

  • Adhesives and sealant chemicals in Adhesive Manufacturing (100%)Processing as a reactant
  • Dehydrating agent (desiccant) in Plastics Material and Resin ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • Waterproofing agent in Paint and Coating Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
  • Paint additives and coating additives not described by other categories in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.04/gAaron Chemicals LLC
CountryHong Kong
Pack$20.00 / 500 g
Purity99%
Vendors19 available

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

18 more vendors
VendorCountry$/gPackPurity
Manchester OrganicsUnited Kingdom$0.041 kg
Angene ChemicalChina Hong Kong$0.041 kg97%
Fluorochem EUGermany$0.09500 g95%
A2B Chem LLCUnited States$0.10500 g97%
AA BLOCKSUnited States$0.13500 g97%
ChemsceneUnited States$0.15500 g
Sigma-Aldrich (Rush Stock)Germany$0.28500 g96%
Sigma-AldrichGermany$0.28500 g96%
AstaTech, IncUnited States$0.30250 g95%
AK Scientific, Inc.United States$0.47100 g95%
Ambeed, Inc.United States$0.50100 g98%
Angene International LimitedUnited States$1.25100 g95%
InterbioscreenHong Kong$68.0010 g95%
Labotest KGGermany$453.001000 mg90%
Key Organics Ltd.United Kingdom$1960.00100 mg95%
Otava, Ltd.Ukraine$2280.0050 mg95%
Otava, Ltd. (2 weeks)Ukraine$2724.0050 mg95%
AngeneChina Hong Kong$4266.6730 mg97%

Chemical Identity

CAS4083-64-1
PubChem CID77703
DTXSIDDTXSID1027558
FormulaC8H7NO3S
Mol. Weight197.21 g/mol
SMILESCC1=CC=C(C=C1)S(=O)(=O)N=C=O

Data Sources

DTXSID10275582026-04-06

https://doi.org/10.23645/epacomptox.5588566

Archive: data/sources/comptox/dsstox_identifiers.csv

777032026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/77703/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/77703.json

4083-64-12026-04-24

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr.csv

CAS 4083-64-12026-04-25

https://www.epa.gov/chemical-data-reporting

Archive: data/sources/epa_cdr/2020_cdr_industrial.csv