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1,5-Naphthalenedisulfonic acid, 2-amino-, sodium salt (1:1)

CAS 19532-03-7

Molecular structure of 19532-03-7
1 Na⁺
US productionNot reported
Import value, 2024$2M
Top sourceCanada 48%

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

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

Where It Comes From

Customs basis: HS 292145 · basket

These shares come from HS customs code 292145, which covers 23 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CA 48%CanadaIN 35%IndiaCN 10%ChinaCH 7%SwitzerlandJP 1%Japan

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS19532-03-7
PubChem CIDNot recorded
DTXSIDDTXSID9044611
FormulaC10H8NNaO6S2
Mol. Weight325.28 g/mol
SMILES[Na+].NC1=C(C2=C(C=C1)C(=CC=C2)S(O)(=O)=O)S([O-])(=O)=O

Data Sources

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Brief citations

1,5-Naphthalenedisulfonic acid, 2-amino-, sodium salt (1:1) (CAS 19532-03-7) https://chemicalindependence.com/chemical/19532-03-7/ EPA TSCA Inventory: CAS 19532-03-7. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 292145 for CAS 19532-03-7. Reporting year: 2024. https://usatrade.census.gov/