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2-(Diphenylamino)-5-((3-ethyl-3H-benzothiazol-2-ylidene)ethylidene)thiazol-4(5H)-one

CAS 2718-78-7

4(5H)-Thiazolone, 2-(diphenylamino)-5-[2-(3-ethyl-2(3H)-benzothiazolylidene)ethylidene]-

Molecular structure of 2718-78-7
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

CAS2718-78-7
PubChem CIDNot recorded
DTXSIDDTXSID8062604
FormulaC26H21N3OS2
Mol. Weight455.59 g/mol
SMILESCCN1C(SC2=C1C=CC=C2)=CC=C1SC(=NC1=O)N(C1=CC=CC=C1)C1=CC=CC=C1

Data Sources

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Brief citations

2-(Diphenylamino)-5-((3-ethyl-3H-benzothiazol-2-ylidene)ethylidene)thiazol-4(5H)-one (CAS 2718-78-7) https://chemicalindependence.com/chemical/2718-78-7/ EPA TSCA Inventory: CAS 2718-78-7. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 293420 for CAS 2718-78-7. Reporting year: 2024. https://usatrade.census.gov/