Copper phthalocyaninedisulfonic acid

CAS 29188-28-1

Cuprate(2-), [29H,31H-phthalocyanine-C,C-disulfonato(4-)-κN29,κN30,κN31,κN32]-, hydrogen (1:2)

Molecular structure of 29188-28-1
US productionNot reported
Import value, 2024$1.4B
Top sourceIreland 33%

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 293399 · basket

These shares come from HS customs code 293399, which covers 518 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IE 33%IrelandCN 26%ChinaIN 11%IndiaDE 9%GermanyIT 4%Italy

Why It Matters

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

Chemical Identity

CAS29188-28-1
PubChem CIDNot recorded
DTXSIDDTXSID501014881
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

Brief citations

Copper phthalocyaninedisulfonic acid (CAS 29188-28-1) https://chemicalindependence.com/chemical/29188-28-1/ EPA TSCA Inventory: CAS 29188-28-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293399 for CAS 29188-28-1. Reporting year: 2024. https://usatrade.census.gov/