POLYVINYLPYRROLIDONE(Povidone, PVP)
CAS No: 9003-39-8
Molecular Formula: (C6H9NO)n
Physical Properties: PVP K series products exists as white or milk white powder or colorless or slight yellow transparent liquid. It can dissolve in water and a variety of organic solvents. It has good hygroscopicity, film-forming capability, complexing ability and physiological compatibility.
PVP (Pharmaceutical grade) is a kind of new excellent pharmaceutical excipient. It is mainly used as binder for tablet and granule, dissolving assistant for injection, flow assistant for capsule, dispersant for liquid medicine and pigment, stabilizer for enzyme and heat-sensitive drug, coprecipitant for poorly soluble drugs, lubricator and antitoxic assistant for eye drug. PVP has been used as excipient in more than one hundred drugs.
| Items |
K17 |
K25 |
K30 |
K90 |
| K value |
15-19 |
23-27 |
29-32 |
88-96 |
| Monomer ppm max |
10 |
10 |
10 |
10 |
| Moisture % max |
5.0 |
5.0 |
5.0 |
5.0 |
| Solid content % max |
95 |
95 |
95 |
95 |
| pH(5% solution) |
3-7 |
3-7 |
3-7 |
5-9 |
| Sulfate ash % max |
0.1 |
0.1 |
0.1 |
0.1 |
| Nitrogen % |
11.5-12.8 |
11.5-12.8 |
11.5-12.8 |
11.5-12.8 |
| Aldehyde ppm max |
500 |
500 |
500 |
500 |
| Heavy metal ppm max |
10 |
10 |
10 |
10 |
| Hydrazine ppm max |
1 |
1 |
1 |
1 |
| Peroxide ppm max |
400 |
400 |
400 |
400 |
Audited Supplier 
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