CAS number: 9003-39-8
Molecular formula: (C6H9NO)n
molecular weight: 111.143
Chemical structure:
Product name | PVP K25 | |
Shelf life | Three years | |
Inspection Standard | USP26 | |
Items | Specifications | Results |
K value | 22-28 | 26.05 |
Moisture % | ≤5.0 | 3.45 |
PH Vaiue(5% in water) | 3-5 | 3.79 |
N-Vinylpyrrolidone % | ≤0.1 | 0.045 |
Residue on lgnition % | ≤0.1 | 0.016 |
Nitrogen % | 11.5-12.8 | 12.06 |
Acetaldehyde % | ≤0.05 | <0.05 |
Heavy metals(as Pb) ppm | ≤10 | <10 |
Hydrazine ppm | ≤1.0 | <1.0 |
as H2O2 ppm | ≤400 | <400 |
Conclusion | THIS PRODUCT MEETS THE REQUIREMENTS FOR USP26 |