Direct Red 23 another name Direct Scarlet 4BS. It’s one popular direct dye for cotton, paper silk and wool.
Direct Red 23 / Direct Fast Scarlet 4BS
C.I. 29160
CAS NO.: 3441-14-3
Molecular formula: C35H25N7Na2O10S2
Packed in 25kgs Iron Drum or Carton Box
Used for dyeing cotton, silk, wool and paper etc