Customization: | Available |
---|---|
Powder: | Yes |
Customized: | Customized |
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Items |
Specification |
Characteristics |
White or almost white crystalline powder, Slightly soluble in water, freely soluble in for mic acid,slightly soluble in anhydrous ethanol. |
Melting point |
about 230°C |
Identification |
1) should conformed 2) specific rotation: -17.5° to -20.5° 3) examine by infrared absorption spectrophotometry,compare the spectrum obtained with reference spectrum:should meet the requirements 4) should conformed |
Related substances |
Method A (EP method): Largest single impurity should ≤0.1% Method B(EP method): Largest single impurity should≤0.1% Total impurities should ≤0.2% |
Enantiomeric purity |
≤0.1% |
Heavy metals |
≤20ppm |
Loss on drying |
≤0.5% |
Sulphated ash |
≤0.1% |
Assay |
98.5% ~ 101.0% |