CAS NO.9003-39-8
Chemical name:Polyvinylpyrrolidone
USP/EP name:Povidone
INC/CTFA name:PVP
Molecular formula:(C₆H₉NO)n
Ingredients: PVP, water, thickener, etc.
Features: Transparent, high viscosity aqueous liquid.
Product type: Water-soluble polymer
Characteristic
Excellent bonding properties: As a binder, PVP K90 can effectively enhance the binding force of drug ingredients in the preparation of tablets and granules to ensure the stability of the dosage form.
Excellent coating ability: PVP K90 can form a uniform protective film, suitable for drug coating, improve appearance and taste, and control the release rate.
Thickening and dispersing properties: In liquid preparations, PVP K90 can be used as a thickener and dispersant to improve fluidity and stability and prevent precipitation.
Biocompatibility: PVP K90 is non-toxic and has good biocompatibility. It is suitable for various drug preparations and meets the strict standards of the pharmaceutical industry.
Specification
| SUNVIDONE K | K15 | K17 | K25 | K30 | K90 |
| Characters | White or light yellow powder with characteristic odor | Clear solution | |||
| K Value | 12.75-17.25 | 15.3-18.5 | 22.5-27.0 | 27.0-32.4 | 81.0-97.2 |
| Water, % | ≤5.0 | ≤5.0 | ≤5.0 | ≤5.0 | ≤5.0 |
| PH value (10% aqueous solution) | 3.0-7.0 | 7.0-9.0 | |||
| Residual monohydrate, % (NVP) | ≤0.2 | ≤0.1 | |||
| Aldehyde, % (AIdehyde) | ≤0.05 | ||||
| Heavy metals, ppm (as Pb)) | ≤10 | ||||
| Hydrazine, pmm (Hydrzine) | ≤1 | ||||
| Peroxide, % (H202) | ≤0.04 | ||||
| Sulfate ash, % (Ashes) | ≤0.1 | ||||
| Lgnition residue, % | ≤0.1 | ||||
| Nitrogen content, % | 11.5-12.8 | ||||
Application
Tablets: As a binder, enhance the stability and hardness of tablets.
Granules: Improve the adhesion and structural stability of granules.
Liquid preparations: Improve the fluidity and stability of oral liquids and injections.
Emulsions and suspensions: Improve the dispersibility of ingredients and prevent precipitation.
FAQ
1.What is the impact of PVP K90 on product performance?
PVP K90 can improve drug release characteristics, enhance adhesion, and enhance product stability and sensory properties.
2.How to test the quality of PVP K90?
Quality testing includes purity analysis, molecular weight determination, and solubility testing to ensure that it meets relevant standards.
3.Is PVP K90 suitable for all drugs?
Although PVP K90 is widely applicable, its specific use still needs to be evaluated based on drug characteristics and formulation requirements.
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