4-Aminobenzenesulfonic acid

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

Molecular structure of 121-57-3
US ProductionCBI
Import Value$30M
Import VolumeZero
Top SourceChina 49%

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 292142 · basket

These shares come from HS customs code 292142, which covers 15 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.

Source Countries
CN 49%ChinaIN 34%IndiaDE 6%GermanyCA 4%CanadaKR 3%South Korea
EPA-registered manufacturers (1)
Nation Ford Chemical

Why It Matters

Sectors
HealthFoodConstructionPaper & Printing
Downstream UsesNo data available
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 4 sectors as 3 functional roles.

  • Intermediate in Pharmaceutical and Medicine Manufacturing (54%)Processing as a reactant
  • Plasticizer in Construction (6%)Processing as a reactant
  • Intermediate in Food, beverage, and tobacco product manufacturing (5%)Processing as a reactant
  • Brightener in Paper Manufacturing (35%)Processing as a reactant

Vendor Pricing

$0.06/gA2B Chem LLC
CountryUnited States
Pack$29.00 / 500 g
Purity99%
Vendors20 available

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

19 more vendors
VendorCountry$/gPackPurity
AA BLOCKSUnited States$0.07500 g99%
ALFA AESARGermany$0.095 kg98%
Cayman EuropeEstonia$0.18500 g95%
AK Scientific SpecializedUnited States$0.19500 g95%
Combi-Blocks, Inc.United States$0.251 kg98%
AK Scientific, Inc.United States$0.26500 g98%
Sigma-Aldrich (Rush Stock)Germany$0.51500 g99%
Sigma-AldrichGermany$0.51500 g99%
Fluorochem UKUnited Kingdom$0.54100 g95%
MedKoo Biosciences, IncUnited States$1.44500 g98%
InterbioscreenHong Kong$5.0010 g95%
HTS Biochemie InnovationenGermany$170.005 g95%
Labotest KGGermany$217.805000 mg90%
Vitas M Chemical LimitedHong Kong$360.001 g90%
Otava, Ltd.Ukraine$2280.0050 mg95%
Otava, Ltd. (2 weeks)Ukraine$2724.0050 mg95%
Life Chemicals Inc.Ukraine Canada$3100.00100 mg90%
Princeton BioMolecular Research (SC)United States$4200.0050 mg90%
ChemDiv, Inc.United States$7666.6715 mg90%

Chemical Identity

CAS121-57-3
PubChem CID8479
DTXSIDDTXSID6024464
FormulaC6H7NO3S
Mol. Weight173.19 g/mol
SMILESC1=CC(=CC=C1N)S(=O)(=O)O

Data Sources

DTXSID60244642026-04-06

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

Archive: data/sources/comptox/dsstox_identifiers.csv

84792026-04-06

https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/8479/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON

Archive: data/sources/pubchem_properties/8479.json

121-57-32026-04-24

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

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

CAS 121-57-32026-04-25

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

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