Scarlet acid CAS NO: 134-47-4 Chemical name: 5,5-Dihydroxy-2,2-Dinaphthyl Urea-7,7-Disodium Sulfonate; Carbonyl J Acid; 6,6'-Ureylene-bis(1-naphthol-3-sulfonic acid); Urea J Acid; J Acid Urea Molecular formula: C21H16N2O9S2 Properties: Grey-white powder...
Scarlet acid
Chemical name: 5,5-Dihydroxy-2,2-Dinaphthyl Urea-7,7-Disodium Sulfonate; Carbonyl J Acid;
6,6'-Ureylene-bis(1-naphthol-3-sulfonic acid); Urea J Acid; J Acid Urea
CAS NO: 134-47-4
Molecular formula: C21H16N2O9S2
Structure formula:
Properties:
Grey-white powder. Soluble in water and alkali solution. It may blast when heated to more than 100°C. Toxic.
Application:
Used as azo dyestuffs. Mainly used for the preparation of direct Orange S and direct acid-proof bright-red 4BS.
Specification:
Items | Quality |
Coupling Value,% | 80 min. |
Insoluble matter,% | 0.2 max. |
Free J Acid,% | 0.0 max. |
Chloride,% | 5 max. |
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