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Acid Yellow 56

Name:C.I.Acid Yellow 56,C.I.24825

Molecular Structure: Double azo class

C.I.Acid Yellow 56,C.I.24825,CAS 6548-24-9,945.76,C41H32Cl2N8Na2O8S2

C.I.Acid Yellow 56,C.I.24825,CAS 6548-24-9,945.76,C41H32Cl2N8Na2O8S2

Molecular Formula:C41H32Cl2N8Na2O8S2

Molecular Weight: 945.76

CAS Registry Number:6548-24-9

Manufacturing Methods : 4-((4-Ammophenyl)(phenyl)methyl)benzenamine double nitriding, and 1-(2-Methyl-4-sulfo-6-chlorophenyl)-3-methyl-5-pyrazolone (2 Moore) coupled.

Properties and Applications:  yellow. Used for wool, silk, polyamide fiber dyeing, also used in leather dyeing and manufacturing organic pigments.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 4-5 4-5 4-5 4-5 4-5 4-5

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