Basic Yellow 57 is used as a direct dye for hair colouring products. It is used without mixing with an oxidising agent (e.g. hydrogen peroxide). The final concentration of Basic Yellow 57 on the head can be up to 2.0%.
|Name of Product||Basic Yellow 57|
|Synonyms||Benzenaminium, 3-((4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo)-N,N,N-trimethyl-, chloride; Basic Yellow 13; Basic Yellow 19; Arianor Straw Yellow; Jarocol Straw Yellow; COLIPA C10|
|Molecular Weight||371.9 g/mol|
|3||Melting point||163-169 °C|
|4||Solubility (at room temperature)|| Water: > 100 g/l
Ethanol: 3 – 30 g/l
DMSO: 10 – 100 g/l