CAS number: 9004-65-3
Molecular formula: C12H20O10
molecular weight: 324.2848
Chemical structure:
Product name | HPMC 15CPS | |
Shelf life | Two years | |
Inspection Standard | USP32 | |
Items | Specifications | Results |
Appearance | White to slightly off-white fibrous or granular powder | White powder |
Identification A To E | Complies | Conforms |
Methoxy | 28.0-30.0% | 28.4% |
Hydroxypropoxy | 7.0-12.0% | 7.2% |
Viscosity | 12-18mpa.s | 15.8mpa.s |
Loss on drying | ≤5.0% | 3% |
Residue on ignition | ≤1.5% | 1.2% |
PH | 5.0-8.0 | 6.3 |
Heavy Metals | ≤10PPM | <10PPM |
Arsenic | ≤2PPM | <2PPM |
Bacterium | ≤1000/g | <1000/g |
Mold | ≤100/g | <100/g |
Conclusion | It conforms to USP32. |