Complaint
| Items | Specifications | Result | |
| Appearance | White or almost white powder,hygroscopic. | Conforms | |
| Solubility | Soluble in water.slightly soluble in alcohol. | Conforms | |
| ldentification | A:The retention times of the major peaks from thesample solution correspond to 'those of thestandard solution,as obtained in the test forcomposition of Polymyxins. B: To the sample solution add 5ml of 2.5N sodiumhydroxide,and mix,Add 5 drops of 10mg/ml ofcupric sulfate shaking after the addition of eachdrop,A reddish-violet color is produced. C: lt gives reaction of sulphate. | Conforms | |
| PH | 5.0-7.5 | 5.4 | |
| Loss on drying | NMT7.0% | 3.0% | |
| Residue on ignition | NMT5.0% | 0.20% | |
| On the dried basis | Not less than 6000IU/mg | 8254IU/mg | |
| Related substances | Any impurity | NMT3.0% | 1.8% |
| Total impurity | 17.0% | 4.1% | |
| Compositionof Polymyxins | B3 | NMT6.0% | 1.4% |
| B1-1 | NMT15.0% | 8.1% | |
| Sum of B1,B2,B3 and B1-l | NMT80.0% | 94.0% | |
| Conlusion | The results conform to the standard of USP43 | ||
| MOQ | 50G |
| BY air | Any airport in china |
| By sea | Any seaport in china |
| By courier | / |
