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Disperse Red 54

CAS 6657-37-0

β-Alanine, N-[4-[2-(2-chloro-4-nitrophenyl)diazenyl]phenyl]-N-(2-cyanoethyl)-, methyl ester

Molecular structure of 6657-37-0
US productionNot reported
Import value, 2024$43M
Top sourceJapan 29%

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 320411 · basket

These shares come from HS customs code 320411, which covers 44 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
JP 29%JapanMX 21%MexicoID 14%IndonesiaIN 13%IndiaCN 11%China

Why It Matters

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

Chemical Identity

CAS6657-37-0
PubChem CIDNot recorded
DTXSIDDTXSID7064447
FormulaC19H18ClN5O4
Mol. Weight415.83 g/mol
SMILESCOC(=O)CCN(CCC#N)C1=CC=C(C=C1)N=NC1=CC=C(C=C1Cl)[N+]([O-])=O

Data Sources

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Brief citations

Disperse Red 54 (CAS 6657-37-0) https://chemicalindependence.com/chemical/6657-37-0/ EPA TSCA Inventory: CAS 6657-37-0. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 320411 for CAS 6657-37-0. Reporting year: 2024. https://usatrade.census.gov/