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C.I. Fluorescent Brightener 135

CAS 1041-00-5

Benzoxazole, 2,2'-(1,2-ethenediyl)bis[5-methyl-

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

Molecular structure of 1041-00-5
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

CAS1041-00-5
PubChem CIDNot recorded
DTXSIDDTXSID8061426
FormulaC18H14N2O2
Mol. Weight290.322 g/mol
SMILESCC1=CC=C2OC(C=CC3=NC4=CC(C)=CC=C4O3)=NC2=C1

Data Sources

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Brief citations

C.I. Fluorescent Brightener 135 (CAS 1041-00-5) https://chemicalindependence.com/chemical/1041-00-5/ EPA TSCA Inventory: CAS 1041-00-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory