Package: 25kg-plastic-woven bag lined with a plastic bag inside

Uses : Used as azo medium.Mainly used for the preparation of direct Orange S and direct acid-proof bright-red 4BS

Molecular Structure:

Product description: Specification:

Appearance	dry grey-white powder
Content	≥80%
Free J acid	≤0.2%(HPLC)
Insoluble solid	≤0.3%
Chloride value	≤5%

Structural formula:
Description:

C₂₁H₁₆O₉N₂S₂
M.W:504.50
Use:Used as azo medium.Mainly used for the preparation of direct Orange S and direct acid-proof bright-red 4BS
Package:25kg-plastic-woven bag lined with a plastic bag inside.