CompoundList
Cosmetic ingredient (INCI)

CI 26100

Used in cosmetic products as colorant. CI 26100 is classed chemically as a disazo colour.

Listed in several EU annexes
  • Prohibited in EU cosmetics, Annex II/1353
  • Allowed colorant, Annex IV/51

Annex IV/51: Not to be used in products applied on mucous membranes

The chemical behind this ingredient

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

1-(p-Phenylazophenylazo)-2-naphthol (Sudan III) chemical structure, C22H16N4O, CAS 85-86-9
1-(p-Phenylazophenylazo)-2-naphthol (Sudan III)
CAS 85-86-9C22H16N4O
54 suppliers
1-(p-Phenylazophenylazo)-2-naphthol (Sudan III)

IUPAC name: 1-[(4-phenyldiazenylphenyl)diazenyl]naphthalen-2-ol

  • 2D structure and identifiers
  • Measured and computed properties
  • GHS safety summary
  • Suppliers, prices and trade data

CI 26100 suppliers

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Frequently asked questions

What is CI 26100 used for in cosmetics?

CI 26100 is used in cosmetic products as colorant. CI 26100 is classed chemically as a disazo colour.

Is CI 26100 restricted in cosmetics in the EU?

CI 26100 is listed in the annexes of EU Cosmetics Regulation (EC) No 1223/2009: Annex II/1353 (prohibited in eu cosmetics), Annex IV/51 (allowed colorant). Annex IV/51: Not to be used in products applied on mucous membranes Always check the full annex entry for the conditions of use.

What is the CAS number of CI 26100?

CI 26100 is listed with CAS number 85-86-9 and EC number 201-638-4.

Where can I buy CI 26100?

8 suppliers list 1-(p-Phenylazophenylazo)-2-naphthol (Sudan III) on CompoundList. Compare them below or post a buy request with your grade and quantity.