CAS number: 9004-65-3
Molecular formula: C12H20O10
molecular weight: 324.2848
Chemical structure:
Product name | HPMC 50CPS | |
Shelf life | Two years | |
Inspection Standard | USP | |
Items | Specifications | Results |
Appearance | white or off-white fibrous or granular powder | White powder |
Hydroxypropyl content % | 7.0—12.0 | 7.7 |
Methoxyl content % | 28.0-32.0 | 28.6 |
Loss on drying % | 5.0max | 3.5 |
Residue on ignition % | 1.5max | 1.07 |
pH @25℃ | 5.0-7.5 | 6.6 |
Insolubles in Water % | 0.5max | 0.24 |
Total bacteria % | 1000max | 377 |
Total Mold % | 70max | 55 |
Heavy metal ppm | 20max | ≤20 |
Viscosity cps | 40-60 | 53 |
100 M % | 98min | ≥98 |
Conclusion: | In conformity with USP |