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Cosmetic ingredient (INCI)

CI 18050

Used in cosmetic products as colorant. CI 18050 is classed chemically as a monoazo colour.

Allowed colorant

EU Cosmetics Regulation (EC) No 1223/2009, Annex IV/38.

Annex IV/38: 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.

C.I. Acid Red 1 chemical structure, C18H13N3Na2O8S2, CAS 3734-67-6
C.I. Acid Red 1
CAS 3734-67-6C18H13N3Na2O8S2
64 suppliers
C.I. Acid Red 1

IUPAC name: disodium, 5-acetamido-4-hydroxy-3-phenyldiazenylnaphthalene-2,7-disulfonate

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

CI 18050 suppliers

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Frequently asked questions

What is CI 18050 used for in cosmetics?

CI 18050 is used in cosmetic products as colorant. CI 18050 is classed chemically as a monoazo colour.

Is CI 18050 restricted in cosmetics in the EU?

CI 18050 is listed in the annexes of EU Cosmetics Regulation (EC) No 1223/2009: Annex IV/38 (allowed colorant). Annex IV/38: 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 18050?

CI 18050 is listed with CAS number 3734-67-6 and EC number 223-098-9.

Where can I buy CI 18050?

8 suppliers list C.I. Acid Red 1 on CompoundList. Compare them below or post a buy request with your grade and quantity.