Roxithromycin
Chemical Name | : Roxithromycin |
Category | : Macrolide antibiotics |
Specification | : EP |
HS Code | : 29415000.00 |
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Structure Formula | : ![]() |
CAS Number | : 56180-94-0 |
Molecular Formula | : C41H76N2O15 |
Usage | : The product is a new generation of macrolide antibiotics, mainly for gram positive bacteria, anaerobic bacteria, chlamydia and mycoplasma. The in vitro antibacterial activity of erythromycin and similar, in vivo 1-4 times stronger than that of erythromycin. |
Items | Standard |
---|---|
Appearance | White or almost white crystalline powder |
Solubility | Very slightly soluble in water, freely soluble in acetone, in alcohol and in methylene chloride. It is slightly soluble in dilute hydrochloric acid. |
Identification | (1) IR: Conforms to the spectrum of Roxithromycin CRS (2) HPLC: Similar inretention time and size to the principal peak of the reference solution |
Appearance of solution | (0.2g/20ml methanol) Clear and colourless |
Specific optical rotation | -93°~-96°(Anhydrous substance 0.500g/50ml acetone) |
Impurities A,B,C,D,E,F,H,I,J (For each impruity) | ≤0.5% |
Impurity G | ≤1.0% |
Total Impurities | ≤3.0% |
Heavy Metals | ≤10ppm |
Water | ≤3.0% |
Sulphated ash | ≤0.1% |
Assay | 96.0~102.0%(Anhydrous substance) |
Residual solvents | Methanol≤3000ppm Acetone≤5000ppm Methylene chloride≤600ppm |
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1, Argentinian National Institute of Drugs
Instituto Nacional de Medicamentos (INAME)
2, Australian Therapeutic Goods Administration (TGA)
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