Specifications

1 Product name Direct black EX
2 CAS No. 1937-37-7
3 MF C34H25N9Na2O7S2
4 Molecular Formula 781.72
5 Strength 100% 150%


Deep black color when dyeing for cotton and viscose fiber, which is much better than Direct Black G; it can be also used for cotton, viscose printing, natural silk, nylon and blended spinning fabrics dyeing; widely used for leather, wood, plastics and black inks.