4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid
No U.S. production. America imports the entire domestic supply.
US ProductionZero
Import Value$2M
Import Volume241.1K lbs
Import Dependency100%
Top SourceIndia 50%
4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid · US import value by year
Where It Comes From
Customs basis: HS 292221 · basket
These shares come from HS customs code 292221, which covers 4 chemicals in total. They estimate the bucket's origin mix, not this chemical specifically.
Source Countries
Country of origin for US imports, from Census customs data (2023).
IN 50%IndiaCN 47%ChinaDE 3%Germany
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.
Liberty Specialty Chemicals
Why It Matters
No data available
Vendor Pricing
$0.03/gAaron Chemicals LLC
CountryHong Kong
Pack$16.00 / 500 g
Purity98%
Vendors13 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
12 more vendors
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| Angene Chemical | China → Hong Kong | $0.04 | 500 g | 97% |
| A2B Chem LLC | United States | $0.12 | 500 g | 97% |
| AA BLOCKS | United States | $0.14 | 500 g | 95% |
| Ambeed, Inc. | United States | $0.17 | 500 g | 98% |
| Combi-Blocks, Inc. | United States | $0.25 | 1 kg | 97% |
| AK Scientific Specialized | United States | $0.30 | 500 g | 95% |
| Angene International Limited | United States | $0.53 | 500 g | 95% |
| AK Scientific, Inc. | United States | $0.75 | 100 g | 98% |
| MedChemExpress MCE | Sweden | $0.80 | 100 g | 97% |
| Fluorochem UK | United Kingdom | $7.15 | 1 g | 95% |
| AstaTech (2 weeks) | United States | $9.60 | 5 g | 95% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 97% |
Chemical Identity
CAS90-20-0
PubChem CID7009
DTXSIDDTXSID0046981
FormulaC10H9NO7S2
Mol. Weight319.3 g/mol
SMILESC1=C2C=C(C=C(C2=C(C=C1S(=O)(=O)O)N)O)S(=O)(=O)O
Data Sources
DTXSID00469812026-04-06
https://doi.org/10.23645/epacomptox.5588566
Archive: data/sources/comptox/dsstox_identifiers.csv
70092026-04-06
https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/7009/property/MolecularFormula,MolecularWeight,CanonicalSMILES,InChIKey/JSON
Archive: data/sources/pubchem_properties/7009.json
90-20-02026-04-24
https://www.epa.gov/chemical-data-reporting
Archive: data/sources/epa_cdr/2020_cdr.csv