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FD&C Green No. 2

CAS 5141-20-8

Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](4-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo-, inner salt, sodium salt (1:2)

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

Molecular structure of 5141-20-8
2 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

$2.32/gAK Scientific, Inc.
CountryUnited States
Pack$58.00 / 25 g
Purity70%
Vendors6 available

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

5 more vendors
VendorCountry$/gPackPurity
BLD Pharmatech Ltd.China$3.79100 g80%
Sigma-Aldrich (Rush Stock)Germany$9.0225 g—
Sigma-AldrichGermany$9.0225 g—
MedKoo Biosciences, IncUnited States$18.0025 g98%
TargetMol ChemicalsChina → United States$29.001 g—

Chemical Identity

CAS5141-20-8
PubChem CIDNot recorded
DTXSIDDTXSID8020672
FormulaC37H34N2Na2O9S3
Mol. Weight792.84 g/mol
SMILES[Na+].[Na+].CCN(CC1=CC(=CC=C1)S([O-])(=O)=O)C1=CC=C(C=C1)C(C1=CC=C(C=C1)S([O-])(=O)=O)=C1C=CC(C=C1)=[N+](CC)CC1=CC(=CC=C1)S([O-])(=O)=O

Data Sources

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Brief citations

FD&C Green No. 2 (CAS 5141-20-8) https://chemicalindependence.com/chemical/5141-20-8/ EPA TSCA Inventory: CAS 5141-20-8. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory