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1-Naphthalenesulfonic acid, 4-amino-, diazotized, coupled with C.I. Natural Yellow 11

CAS 71342-91-1

EPA and Census publish no US supply data for this chemical.

Molecular structure of 71342-91-1
US productionNot reported
Top sourceNo public record

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

Where It Comes From

EPA and Census publish no US supply data for this chemical.

Why It Matters

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

Chemical Identity

CAS71342-91-1
PubChem CIDNot recorded
DTXSIDDTXSID90103958
FormulaNot recorded
Mol. WeightNot recorded
SMILESNot recorded

Data Sources

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Brief citations

1-Naphthalenesulfonic acid, 4-amino-, diazotized, coupled with C.I. Natural Yellow 11 (CAS 71342-91-1) https://chemicalindependence.com/chemical/71342-91-1/ EPA TSCA Inventory: CAS 71342-91-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory