Povidone K90 (PVP K90)
CAS Number: 9003-39-8
Povidone K90 is a high-molecular-weight grade of polyvinylpyrrolidone with a K-value of 85–95, providing stronger binding and higher viscosity than lower K-value grades. It is particularly suitable for formulations requiring robust granule strength, sustained-release matrices, and ophthalmic preparations. Compliant with USP/NF, EP, JP, and ChP pharmacopoeias.
Technical Specifications
| K-value | 85.0–95.0 |
| appearance | White to slightly yellowish powder |
| pH (5% solution) | 3.0–5.0 |
| heavy metals (ppm) | ≤10 |
| loss on drying (%) | ≤5.0 |
| nitrogen content (%) | 11.5–12.8 |
Applications
- High-strength wet granulation binder
- Sustained-release matrix former
- Ophthalmic solution viscosity modifier
- Film coating polymer
- Complexation agent for poorly soluble drugs
Key Features
- High MW for superior binding strength
- Excellent film-forming properties
- Soluble in water and organic solvents
- USP/NF, EP, JP, ChP compliant
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CAS Number
9003-39-8
Category
Pharmaceutical ExcipientsAvailability
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