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| ITEM | STANDARD |
| APPEARANCE | Yellowish crystalline powder |
| PURITY(%) | >= 96.0 TEST METHOD UV |
| MENADIONE (%) | >= 43.0 TEST METHOD UV |
| Nicotinamide (%) | >=31.0 TEST METHOD UV |
| WATER (%) | =< 1.5 TEST METHOD Karl Fisher |
| Heavy metals(Pb) (%) | =<0.002 |