| Appearance | Yellow to light yellow crystalline powder | 
| Assay | 99% min. | 
| Melting Point | 224℃~228℃ | 
| Loss on Drying | 0.5%max. | 
| Pb | 10 ppm max. | 
| As | 2ppm max. | 
| Hg | 1 ppm max. | 
| Cd | 5 ppm max. | 
| Total Bacterial Count | 1,000 cfu/g max. | 
| Molds & Yeasts | 100 cfu/g max. | 
| E.Coli | Negative/g | 
| Staphylococcus Aureus | Negative/g | 
| P.Aeruginosa | Negative/g |