Bis[4-hydroxy-3-[(2-hydroxy-1-naphthalenyl)azo]benzenesulfonamidato(2-)]cobaltate(1-), sodium salt

CAS 58302-43-5

Molecular structure of 58302-43-5 — 1 Co³⁺ · 1 Na⁺

US productionNot reported

Import value, 2024$2.0B

Top sourceIreland 63%

EPA lists this chemical for 2019 but publishes zero or no volume for both production and imports.

Production is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293590 · basket

EPA reports by year

2019: US production Not published · Imports Not published

These shares come from HS customs code 293590, which covers 182 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

IE 63%IrelandSG 14%SingaporeIN 7%IndiaCN 7%ChinaCH 2%Switzerland

Portugal
Spain
Italy
Austria
Israel
Hungary
Canada
South Korea
Netherlands
Finland
Poland
Indonesia
Ukraine
Mexico
South Africa
Croatia
Greece
Taiwan
Hong Kong

Domestic parents -- activity not disclosed (1)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Dystar

Why It Matters

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

Chemical Identity

CAS58302-43-5

PubChem CID162852

DTXSIDDTXSID90894152

FormulaC32H22CoN6NaO8S2

Mol. Weight764.6 g/mol

SMILESC1=CC=C2C(=C1)C=CC(=C2N=NC3=C(C=CC(=C3)S(=O)(=O)N)[O-])[O-].C1=CC=C2C(=C1)C=CC(=C2N=NC3=C(C=CC(=C3)S(=O)(=O)N)[O-])[O-].[Na+].[Co+3]

Data Sources

EPA CompTox (DSSTox) · DTXSID90894152Retrieved 2026-04-06
PubChem · compound 162852Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Bis[4-hydroxy-3-[(2-hydroxy-1-naphthalenyl)azo]benzenesulfonamidato(2-)]cobaltate(1-), sodium salt (CAS 58302-43-5) https://chemicalindependence.com/chemical/58302-43-5/ EPA CompTox (DSSTox): DTXSID90894152. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID90894152 PubChem: 162852. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/162852 EPA Chemical Data Reporting: 58302-43-5. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 293590 for CAS 58302-43-5. Reporting year: 2024. https://usatrade.census.gov/