CompoundList
Cosmetic ingredient (INCI)

Acid Orange 7

Used in cosmetic products as hair dyeing. Acid Orange 7 is classed chemically as a monoazo colour (see also CI 15510).

Listed in several EU annexes
  • Allowed with restrictions, Annex III/318
  • Allowed colorant, Annex IV/21

Annex III/318: As from 3 June 2021: 0,5 %. | Annex IV/21: Not to be used in eye products ban substances that deplete the ozone layer

The chemical behind this ingredient

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

C.I. Acid Orange 7 chemical structure, C16H11N2NaO4S, CAS 633-96-5
C.I. Acid Orange 7
CAS 633-96-5C16H11N2NaO4S
67 suppliers
C.I. Acid Orange 7

IUPAC name: sodium 4-[(2-hydroxynaphthalen-1-yl)diazenyl]benzenesulfonate

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

Acid Orange 7 suppliers

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Frequently asked questions

What is Acid Orange 7 used for in cosmetics?

Acid Orange 7 is used in cosmetic products as hair dyeing. Acid Orange 7 is classed chemically as a monoazo colour (see also CI 15510).

Is Acid Orange 7 restricted in cosmetics in the EU?

Acid Orange 7 is listed in the annexes of EU Cosmetics Regulation (EC) No 1223/2009: Annex III/318 (allowed with restrictions), Annex IV/21 (allowed colorant). Annex III/318: As from 3 June 2021: 0,5 %. | Annex IV/21: Not to be used in eye products ban substances that deplete the ozone layer Always check the full annex entry for the conditions of use.

What is the CAS number of Acid Orange 7?

Acid Orange 7 is listed with CAS number 633-96-5 and EC number 211-199-0.

Where can I buy Acid Orange 7?

8 suppliers list C.I. Acid Orange 7 on CompoundList. Compare them below or post a buy request with your grade and quantity.