Products

Indigo

Molecular formula: C₁₆H₁₀O₂N₂
Molecular weight: 262.26
Use: as raw material, reduced indigo is mainly used in cotton yarn, cotton cloth, wool or silk. The pure product can be used to produce food dyes.
Technical conditions: execute HG/T2750-1996
Apperance: dark blue uniform powder
Assay % (oxo process): ≥ 94
Fineness %(60mesh): ≥95
Iron ions: 300ppm
Water content %: ≤1.0