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C.I. Basic Blus 54

CAS 15000-59-6

Benzothiazolium, 2-[2-[4-(dimethylamino)phenyl]diazenyl]-6-methoxy-3-methyl-, methyl sulfate (1:1)

Molecular structure of 15000-59-6
US productionNot reported
Import value, 2024$24M
Top sourceIndia 35%

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 320413 · basket

These shares come from HS customs code 320413, which covers 64 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IN 35%IndiaMX 27%MexicoDE 16%GermanyTW 3%TaiwanCN 3%China

Why It Matters

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

Chemical Identity

CAS15000-59-6
PubChem CIDNot recorded
DTXSIDDTXSID30879827
FormulaC18H22N4O5S2
Mol. Weight438.52 g/mol
SMILESCOS([O-])(=O)=O.COC1=CC2=C(C=C1)[N+](C)=C(S2)\N=N\C1=CC=C(C=C1)N(C)C

Data Sources

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Brief citations

C.I. Basic Blus 54 (CAS 15000-59-6) https://chemicalindependence.com/chemical/15000-59-6/ EPA TSCA Inventory: CAS 15000-59-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 320413 for CAS 15000-59-6. Reporting year: 2024. https://usatrade.census.gov/