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C.I. Basic Yellow 29

CAS 68134-38-3

3H-Indolium, 1,3,3-trimethyl-2-[[2-methyl-2-(4-methylphenyl)hydrazinylidene]methyl]-, chloride (1:1)

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

Molecular structure of 68134-38-3
1 Cl⁻
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

CAS68134-38-3
PubChem CIDNot recorded
DTXSIDDTXSID00887196
FormulaC20H24ClN3
Mol. Weight341.88 g/mol
SMILES[Cl-].CN(N=CC1=[N+](C)C2=C(C=CC=C2)C1(C)C)C1=CC=C(C)C=C1

Data Sources

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Brief citations

C.I. Basic Yellow 29 (CAS 68134-38-3) https://chemicalindependence.com/chemical/68134-38-3/ EPA TSCA Inventory: CAS 68134-38-3. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory