CAS number： 58-27-5
Molecular formula： C11H8O2
molecular weight： 172.18
Chemical structure：
| Product Name | Vitamin K3(Menadione Sodium Bisulfite) | |
| Shelf Life | 2 years | |
| Item | MSB 96% | MSB 98% |
| Description | White Crystalline Powder | White Crystalline Powder |
| Assay | ≥96.0% | ≥98.0% |
| Menadione | ≥50.0% | ≥51.0% |
| Water Content | ≤12.5% | ≤12.5% |
| NaHSO3 | ≤5.0% | ≤5.0% |
| Heavy Metals | ≤0.002% | ≤0.002% |
| Arsenic | ≤0.0002% | ≤0.0002% |
| Solution Color | No.4 of yellow and green standard colorimetric solution | No.4 of yellow and green standard colorimetric solution |
