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Cosmetic ingredient (INCI)

Pigment Red 57:1

Used in cosmetic products as colorant and hair dyeing. Pigment Red 57:1 is classed chemically as a monoazo colour.

Allowed colorant

EU Cosmetics Regulation (EC) No 1223/2009, Annex IV/27.

ban substances that deplete the ozone layer

The chemical behind this ingredient

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

2-Naphthalenecarboxylic acid, 3-hydroxy-4-((4-methyl-2-sulfophenyl)azo)-, calcium salt (1:1) chemical structure, C18H12CaN2O6S, CAS 5281-04-9
2-Naphthalenecarboxylic acid, 3-hydroxy-4-((4-methyl-2-sulfophenyl)azo)-, calcium salt (1:1)
CAS 5281-04-9C18H12CaN2O6S
22 suppliers
2-Naphthalenecarboxylic acid, 3-hydroxy-4-((4-methyl-2-sulfophenyl)azo)-, calcium salt (1:1)

IUPAC name: calcium 2-[(3-carboxy-2-oxidonaphthalen-1-yl)diazenyl]-5-methylbenzenesulfonate

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

Pigment Red 57:1 suppliers

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Frequently asked questions

What is Pigment Red 57:1 used for in cosmetics?

Pigment Red 57:1 is used in cosmetic products as colorant and hair dyeing. Pigment Red 57:1 is classed chemically as a monoazo colour.

Is Pigment Red 57:1 restricted in cosmetics in the EU?

Pigment Red 57:1 is listed in the annexes of EU Cosmetics Regulation (EC) No 1223/2009: Annex IV/27 (allowed colorant). ban substances that deplete the ozone layer Always check the full annex entry for the conditions of use.

What is the CAS number of Pigment Red 57:1?

Pigment Red 57:1 is listed with CAS numbers 29092-56-6 and 5281-04-9 and EC number 226-109-5.

Where can I buy Pigment Red 57:1?

8 suppliers list 2-Naphthalenecarboxylic acid, 3-hydroxy-4-((4-methyl-2-sulfophenyl)azo)-, calcium salt (1:1) on CompoundList. Compare them below or post a buy request with your grade and quantity.