Flag of the United StatesAmerican Chemical Independence

1H-Carbazolium, 9-[2-(5-chloro-1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)ethylidene]-2,3,4,4a,9,9a-hexahydro-, chloride (1:1)

CAS 55798-23-7

Molecular structure of 55798-23-7
1 Cl⁻
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

CAS55798-23-7
PubChem CIDNot recorded
DTXSIDDTXSID20886181
FormulaC25H28Cl2N2
Mol. Weight427.41 g/mol
SMILES[Cl-].CN1C2=C(C=C(Cl)C=C2)C(C)(C)C1=CC=[N+]1C2CCCCC2C2=C1C=CC=C2

Data Sources

← Back to Dashboard

Brief citations

1H-Carbazolium, 9-[2-(5-chloro-1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)ethylidene]-2,3,4,4a,9,9a-hexahydro-, chloride (1:1) (CAS 55798-23-7) https://chemicalindependence.com/chemical/55798-23-7/ EPA TSCA Inventory: CAS 55798-23-7. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 320413 for CAS 55798-23-7. Reporting year: 2024. https://usatrade.census.gov/