1. Molecular formula:C₃₈H₂₉N₄Na₃O₁₁S₃

2. Molecular weight:882.82

3. Structure formula:

4. CAS NO.:6507-78-4

5. Appearance: Red powder.

6. Specification: Strength 150%, 200%, crude

7. Usage: Mainly used in dyeing ofwool and worsted goods.

8. Packing, storage and transportation: Packed with 25KG cartons, allows to be tansported by the general means.
 

Properties and Applications

Colourful red yellow light. Dark red powder, soluble in water for orange red, slightly soluble in ethanol for golden brown. The strong sulfuric acid to red light purple, to orange diluted. The dye solution to join strong hydrochloric acid for orange red, add thick sodium hydroxide solution for orange brown. Used for wool, silk and polyamide fiber dyeing.

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