CAS number: 9003-39-8
Molecular formula: C6H9NO)n
molecular weight: 111.143
Chemical structure:
Product name | PVP K30 | |
Shelf life | Three years | |
Inspection Standard | USP34/NF29 | |
Items | Specifications | Results |
Appearance | White or yellowish-white hygroscopic powder or flakes. | Complies |
Identification | An orange-yellow precipitate is formed. | Complies |
A pale blue precipitate is formed | Complies | |
A deep red colour is produced. | Complies | |
Assay(Nitrogen) | 11.5~12.8% | 12% |
Residue on ignition | ≤ 0.1% | 0.04% |
Lead | ≤ 10ppm | <10ppm |
Aldehydes | ≤ 0.05% | <0.05% |
Peroxides(as H2O2) | ≤ 400ppm | 102ppm |
Hydrazine | ≤ 1ppm | <1ppm |
Vinylpyrrolidinone | ≤ 0.001% | 0.0006% |
PH (1 in 20) | 3.0 ~ 7.0 | 3.4 |
Water | ≤ 5.0% | 2.9% |
K –Value | 27.0~32.4 | 29.8 |
Residual Solvents (Isopropanol Alcohol) | ≤ 0.5% | 0.2% |
TAMC | ≤ 1000 cfu/g | 30cfu/g |
TYMC | ≤ 100 cfu/g | 20cfu/g |
Staphylococcus Aureus | Negative in 10g | Negative |
Salmonella | Negative in 10g | Negative |
Pseudomonas Aeruginosa | Negative in 10g | Negative |
E. Coli | Negative in 10g | Negative |
Conclusion | The product complies with USP34/NF29 standard. | |