1. Molecular Formula C14H12O6 S

2. Molecular Weight 308.31

3. CAS No. 4065-45-6

4. Appearance White or light yellow crystalline powder

5. Assay 99.0% min.

6. Heavy metals 5ppm max.

7. Colour (Gardner-10% aqueous solution) 2.0 max.

8. Loss on drying a.5.0% max b. 3.0% max

9. PH value 1.2-2.2

10. UV Absorbance Max @285nm 460 min.

11. UV Absorbance Max @325nm 290 min.

12. Melting Point (deg C) 140 min.

13.Turbidity in water 4.0 max

14. Package 25kg net cardboard drum

15.Storage: Preserve in tight, light-resistent containers