Popular Dye Direct Red 31 / Direct Pink 12B for Cotton Silk Paper

Direct Red 31 / Direct Red 12B C.I. 29100 CAS NO.: 5001-72-9 Molecular formula: C₃₂H₂₁N₅Na₂O₈S₂ Packed in 25kgs Iron Drum or Carton Used for dyeing cotton, silk and paper etc [video width="1280" height="720" mp4="https://www.pldyes.com/uploads/058da2fa1.mp4"][/video]