6,6'-Ureylene-bis(1-naphthol-3-sulfonic acid) [ 134-47-4 ]
- Density
- 1.798 (g/cm3)
Specification:
Appearancedry grey-white powder
Content≥80%
Free J acid≤0.2%(HPLC)
Insoluble solid≤0.3%
Chloride value≤5%
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
Appearancedry grey-white powder
Content≥80%
Free J acid≤0.2%(HPLC)
Insoluble solid≤0.3%
Chloride value≤5%
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