Basic Yellow 40 is a fluorescent dye that exists as a salt form of a coumarin derivative containing a diethylamino group and a benzimidazolium moiety. It is primarily used for applications requiring fluorescent properties.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Basic yellow 40
Fluorescent dye for consumer products
Indocyanine green
Diagnostic imaging agent
Direct green 1
Direct dye for cellulose fibers
Direct Orange S
Direct dye for textiles
3-diethylamino-6-methyl-7-(2,4-xylidino)fluoran
fluoran dye for thermal paper
The international HS code for 7-(diethylamino)-3-(1,3-dimethylbenzimidazol-3-ium-2-yl)chromen-2-one; methyl sulfate (CAS 35869-60-4) is 2934.99.
2934.99
2934 99 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
7-(diethylamino)-3-(1,3-dimethylbenzimidazol-3-ium-2-yl)chromen-2-one;methyl sulfate
MIAAORZMZPMICQ-UHFFFAOYSA-M
CCN(CC)C1=CC2=C(C=C1)C=C(C(=O)O2)C3=[N+](C4=CC=CC=C4N3C)C.COS(=O)(=O)[O-]
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