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4-Amino-1-naphthalenesulfonic acid sodium salt

CAS 130-13-2

1-Naphthalenesulfonic acid, 4-amino-, sodium salt (1:1)

Molecular structure of 130-13-2
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

CAS130-13-2
PubChem CIDNot recorded
DTXSIDDTXSID0059611
FormulaC10H8NNaO3S
Mol. Weight245.23 g/mol
SMILES[Na+].NC1=C2C=CC=CC2=C(C=C1)S([O-])(=O)=O

Data Sources

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Brief citations

4-Amino-1-naphthalenesulfonic acid sodium salt (CAS 130-13-2) https://chemicalindependence.com/chemical/130-13-2/ EPA TSCA Inventory: CAS 130-13-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 292145 for CAS 130-13-2. Reporting year: 2024. https://usatrade.census.gov/