| 项目 test | 标准 Specification |
1 | Appearance (Color) | White Crystalline Powder |
2 | Solubility (Color, 5% aqueous solution) | Clear, Colorless Solution |
3 | Solubility (Turbidity,5% aqueous solution) | Clear |
4 | Melting point | 168°C~172°C |
4 | Assay (Titration by HCl) | 99.5%~101.0% |
5 | Infrared Spectrum | Conforms to Structure |
6 | pH 5% H2O | 10.0~11.5(25℃) |
7 | UV Absorbance 260mm 10% w/w | absorbance≤0.03 |
8 | UV Absorbance 280mm 10% w/w | absorbance≤0.03 |
9 | UV Absorbance 260mm 10% w/w | absorbance≤0.10 |
10 | UV Absorbance 290mm 10% w/w | absorbance≤0.20 |
12 | Water insoluble | 0.03% |
13 | Loss on drying(105℃ for 3 Hours) WT% | ≤0.5% |
14 | Sulfated Ash | ≤0.1% |
15 | Chloride Cl- | ≤10ppm |
16 | SulfateSO4 2+ | ≤10ppm |
17 | Heavy Metals Pb | ≤5ppm |
18 | Iron Fe | ≤5ppm |
Biologic Reagent (BR) and Pharma grade can be available as requested, with DNase-Endonuclease /Exonuclease test and DNase – Nickase, Bioburden <=100 CFU/g, Yeast & Mold <=100 CFU/g, Endotoxin <=50EU/g. |