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Месяц | Минимальная цена | Макс. стоимость |
---|---|---|
Sep-20-2025 | 0.57 $* | 0.24 $* |
Aug-20-2025 | 0.72 $* | 0.31 $* |
Jul-20-2025 | 0.2 $* | 0.13 $* |
Jun-20-2025 | 0.94 $* | 0.12 $* |
May-20-2025 | 0.75 $* | 0.2 $* |
Apr-20-2025 | 0.54 $* | 0.46 $* |
Mar-20-2025 | 0.72 $* | 0.59 $* |
Feb-20-2025 | 0.6 $* | 0.51 $* |
Jan-20-2025 | 0.35 $* | 0.71 $* |
Specifications:
TEST | STANDARDS | RESULTS |
Description | White or almost white crystalline powder. | White crystalline powder |
Solubility | Freely soluble in water, practically insoluble or very slightly soluble in ethanol (96 percent) and in Methylene chloride. | Complies |
Identification |
A) By Infrared absorption spectroscopy B) It gives reaction of sulphates C) By Ultraviolet spectroscopy D) By Thin layer chromatography E) Red Orange colour in methylene chloride layer
| Complies Complies Complies Complies Complies |
Solution S | Dissolve 0.25 gm in carbon dioxide free water R and dilute to 25.0 ml with the same solvent | Complies |
Appearance of solution | Solution S is clear and not more intensely coloured than reference solution BY6 | Complies |
Optical rotation | -0.10o to +0.10o, determined solution S | 0.000o |
Acidity or alkalinity | Not more than 0.4 ml of 0.01M HCL is required to change the colour of the indicator to red | 0.30 ml of 0.01M HCL is required |
Impurity J | Maximum 0.2 per cent | Complies |
Related substances by HPLC | Impurity D,F for each impurity : NMT 0.30% Impurity C,N,O : NMT 0.20% Other Impurity : NMT 0.10% Total impurities : Maximum 0.90% | Not Detected Not Detected Complies Complies |
Boron | Maximum 50 ppm | Less than 50 ppm |
Loss on drying | Maximum 0.50% | 0.31% |
Sulphated ash | Maximum 0.10% | 0.06% |
Assay | 98.0% to 101.0% (dried substance). | 99.42% |
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