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Benzothiazolium, 2-[2-methyl-3-[3-(4-sulfobutyl)-2(3H)-benzothiazolylidene]-1-propen-1-yl]-3-(4-sulfobutyl)-, inner salt, compd. with N,N-diethylethanamine (1:1)

CAS 37966-23-7

Molecular structure of 37966-23-7
US productionNot reported
Import value, 2024$104M
Top sourceChina 56%

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 293420 · basket

These shares come from HS customs code 293420, which covers 76 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 56%ChinaBE 33%BelgiumIN 4%IndiaIT 3%ItalyES 2%Spain

Why It Matters

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

Chemical Identity

CAS37966-23-7
PubChem CIDNot recorded
DTXSIDDTXSID40958955
FormulaC32H45N3O6S4
Mol. Weight695.97 g/mol
SMILESCCN(CC)CC.CC(=CC1=[N+](CCCCS(O)(=O)=O)C2=CC=CC=C2S1)C=C1SC2=CC=CC=C2N1CCCCS([O-])(=O)=O

Data Sources

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Brief citations

Benzothiazolium, 2-[2-methyl-3-[3-(4-sulfobutyl)-2(3H)-benzothiazolylidene]-1-propen-1-yl]-3-(4-sulfobutyl)-, inner salt, compd. with N,N-diethylethanamine (1:1) (CAS 37966-23-7) https://chemicalindependence.com/chemical/37966-23-7/ EPA TSCA Inventory: CAS 37966-23-7. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293420 for CAS 37966-23-7. Reporting year: 2024. https://usatrade.census.gov/