Factory supply Polymyxin B Sulfate Powder CAS 1405-20-5 with good price
Specification
| Items | Specification | Result |
| Appearance | White to almost white powder | Complies |
| Identification | A. Liquid chromatographic identification test
B. A reddish violet color is produced
C. Test for sulfate | Complies |
| Loss on drying | ≤7.0% | 3.5% |
| PH(2%) | 5.0-7.0 | 6.6 |
| Phenylalanine | 9.0%~12.0% | 11.0% |
| Sulphated ash | ≤0.75% | 0.01% |
| Specific optical rotation | -78°~-90° | -65.6° |
| Sulphate | 15.5%~17.5% | 16.0% |
| Heavy metal | ≤20ppm | Complies |
Assay(microbial)
(on dried basis) | ≥6500iu/mg | 8063iu/mg |
| Particle size | 99.0% not more than 30um by vol.
90.0% not more than 25um by vol.
75.0% not more than 20um by vol.
Mean diameter not more than 8.0um. | <20
<20 |
Usage:
Polymyxin B sulfate is used as topical antibiotic agent, often used in combination with neomycin; products include ointments, creams, eye, and ear drops.
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