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The Universal Selection Source:
Cosmetics Ingredients

ACID BLUE 9

ACID BLUE 9 is classified as :
  • Cosmetic colorant
  • Hair dyeing

CAS Number 3844-45-9
EINECS/ELINCS No: 223-339-8
Restriction (applies to EU only): III/190 IV/1
COSING REF No: 31613
Chem/IUPAC Name/Description: Dihydrogen (ethyl)[4-[4-[ethyl(3-sulphonatobenzyl)]amino]-2'-sulphonatobenzhydrylidene]cyclohexa-2,5-dien-1-ylidene](3-sulphonatobenzyl)ammonium, disodium salt (CI 42090)
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