Reactive Yellow 145A

CAS 80157-00-2

1,3,6-Naphthalenetrisulfonic acid, 7-[2-[2-[(aminocarbonyl)amino]-4-[[4-chloro-6-[[3-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]phenyl]diazenyl]-, sodium salt (1:4)

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

Molecular structure of 80157-00-2 — 4 Na⁺

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.

Vendor Pricing

$0.16/gAA BLOCKS (2 weeks)

CountryUnited States

Pack$81.00 / 500 g

PurityNot recorded

Vendors2 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

1 more vendor

Vendor	Country	$/g	Pack	Purity
Aaron Chemicals LLC	Hong Kong	$0.20	500 g	—

Chemical Identity

CAS80157-00-2

PubChem CIDNot recorded

DTXSIDDTXSID9072866

FormulaC28H20ClN9Na4O16S5

Mol. Weight1026.22 g/mol

SMILES[Na+].[Na+].[Na+].[Na+].NC(=O)NC1=C(C=CC(NC2=NC(NC3=CC(=CC=C3)S(=O)(=O)CCOS([O-])(=O)=O)=NC(Cl)=N2)=C1)N=NC1=CC2=C(C=C(C=C2C=C1S([O-])(=O)=O)S([O-])(=O)=O)S([O-])(=O)=O

Data Sources

EPA TSCA InventoryRetrieved 2026-10-04

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Brief citations

Reactive Yellow 145A (CAS 80157-00-2) https://chemicalindependence.com/chemical/80157-00-2/ EPA TSCA Inventory: CAS 80157-00-2. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory