Code: km-308
Product name: Direct Red 28
CAS number 573-58-0
MF: C₃₂H₂₂N₆Na₂O₆S₂
MW: 696.68
PH indicator range:  3.0(bluish violet)-5.2(red)
Water-insoluble test : qualified
Moisture: 5.0%max
Residue on ignition: 27%max