Product description: Name:C.I.Acid Black 194 Molecular Structure: Single azo,calcium complex C.I.Acid Black 194,CAS 61931-02-0,461.38,C20H12N3NaO7S,Acid Black L-DN,Acid Black M-SDL,Acid Black MS-RL,Neutral Black 2S-BL,Neutral Black M-SDL,Neutral Black M-SRL,Neutral Complex Black MSRL Molecular Formula:C20H12N3NaO7S Molecular Weight: 461.38 CAS Registry Number:61931-02-0 1.Properties and Applications: ash to red and black. Dark brown powder, soluble in water. Used for wool, polyamide fiber, silk and their blended fabric dyeing and printing. Nylon fabric in good dye deep performance. Also can be used for leather color. Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater Fading Stain Fading Stain Fading Stain ISO 5 3-4 4-5 4-5 4-5 2.International Similar Brand Acid Black L-DN Acid Black M-SDL Acid Black MS-RL Neutral Black 2S-BL Neutral Black M-SDL Neutral Black M-SRL Neutral Complex Black MSRL AACL Black MSRL 150% Acid Black MSRL Acid Black RM Acid Black SRL Conc. Acid TSA Black MRL Acidol Black M-SRL Airedale Fast Black Akacid Black SRL