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3,3'-Sulphonyldianiline

CAS 599-61-1

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

Molecular structure of 599-61-1
US productionZero
Import value, 2024$760M
Import volumeCBI
Top sourceChina 33%

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 293090 · basket

EPA reports by year
2023
US production Zero · Imports Confidential
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 293090, which covers 418 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 33%ChinaES 14%SpainCH 9%SwitzerlandIT 7%ItalyIN 7%India
EPA-registered importers (1)
Huntsman

Why It Matters

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

Industrial Uses

Used in 2 sectors as 2 functional roles.

  • •Dehydrating agent (desiccant) in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in Adhesive Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Vendor Pricing

$0.03/gAaron Chemicals LLC
CountryHong Kong
Pack$15.00 / 500 g
PurityNot recorded
Vendors25 available

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

24 more vendors
VendorCountry$/gPackPurity
Angene ChemicalChina → Hong Kong$0.03500 g97%
A2B Chem LLCUnited States$0.05500 g98%
BLD Pharmatech GmbHGermany$0.061 kg97%
BLD Pharmatech Ltd.China$0.061 kg97%
ChemsceneUnited States$0.06500 g—
AA BLOCKSUnited States$0.06500 g98%
Fluorochem EUGermany$0.08500 g98%
MedChemExpress MCESweden$0.08500 g—
AK Scientific SpecializedUnited States$0.10500 g95%
BLD Pharmatech Co., LimitedUnited States$0.111 kg97%
Ambeed, Inc.United States$0.111 kg97%
AK Scientific, Inc.United States$0.13500 g98%
Combi-Blocks, Inc.United States$0.251 kg99%
Angene International LimitedUnited States$0.28500 g98%
ALFA AESARGermany$1.4625 g98%
AstaTech (2 weeks)United States$3.0825 g98%
InterbioscreenHong Kong$34.0010 g95%
Labotest KGGermany$217.805000 mg90%
TargetMol ChemicalsChina → United States$2390.00100 mg99.95%
Princeton BioMolecular Research (SC)United States$2900.00100 mg90%
Vitas M Chemical LimitedHong Kong$3170.00100 mg90%
ChemDiv, Inc.United States$4070.00100 mg90%
AngeneChina → Hong Kong$4266.6730 mg98%
TimTec, LLC (back-ordered)United States$32000.0015 mg94%

Chemical Identity

CAS599-61-1
PubChem CID11741
DTXSIDDTXSID3044962
FormulaC12H12N2O2S
Mol. Weight248.3 g/mol
SMILESC1=CC(=CC(=C1)S(=O)(=O)C2=CC=CC(=C2)N)N

Data Sources

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Brief citations

3,3'-Sulphonyldianiline (CAS 599-61-1) https://chemicalindependence.com/chemical/599-61-1/ EPA CompTox (DSSTox): DTXSID3044962. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID3044962 PubChem: 11741. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/11741 EPA Chemical Data Reporting: 599-61-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 599-61-1. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293090 for CAS 599-61-1. Reporting year: 2024. https://usatrade.census.gov/