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Cosmetic ingredient (INCI)

Basic Yellow 11

Used in cosmetic products as hair dyeing. 2-(2-((2,4-dimethoxyphenyl)amino)vinyl)-1,3,3-trimethyl-3H-indolium chloride (CI 48055)

Prohibited in EU cosmetics

EU Cosmetics Regulation (EC) No 1223/2009, Annex II/1273.

ban substances that deplete the ozone layer

The chemical behind this ingredient

Structure, properties, safety data and price information live on the chemical page.

Basic Yellow 11 chemical structure, C21H25ClN2O2, CAS 4208-80-4
Basic Yellow 11
CAS 4208-80-4C21H25ClN2O2
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Basic Yellow 11

IUPAC name: 2,4-dimethoxy-N-[(E)-2-(1,3,3-trimethylindol-1-ium-2-yl)ethenyl]aniline chloride

  • 2D structure and identifiers
  • Measured and computed properties
  • GHS safety summary
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Frequently asked questions

What is Basic Yellow 11 used for in cosmetics?

Basic Yellow 11 is used in cosmetic products as hair dyeing. 2-(2-((2,4-dimethoxyphenyl)amino)vinyl)-1,3,3-trimethyl-3H-indolium chloride (CI 48055)

Is Basic Yellow 11 restricted in cosmetics in the EU?

Basic Yellow 11 is listed in the annexes of EU Cosmetics Regulation (EC) No 1223/2009: Annex II/1273 (prohibited in eu cosmetics). ban substances that deplete the ozone layer Always check the full annex entry for the conditions of use.

What is the CAS number of Basic Yellow 11?

Basic Yellow 11 is listed with CAS number 4208-80-4 and EC number 224-132-5.

Where can I buy Basic Yellow 11?

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