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Roxithromycin

Chemical name:	Erythromycin 9-[O-[(2-methoxyethoxy)methyl]oxime]
Structure:
Molecular formula:	C₄₁H₇₆N₂O₁₅
Molecular weight:	873.03
Specification	Appearance: White or offwhite crystalline powder. Identification: Positive Specific rotation: -82°- -87° pH: 8.0-10.0 Water: ≤3.0% Potency value: ≥940μ g/mg Impurity: Conform to company standard.
Use:	Macrolide antibiotic, active against gram-positive and gram- negative cocci, gram-positive bacilli, gram-negative bacilli, Legionella, Chlamydia, Mycobacterium, Rickettsia, Borrelia spp. etc. The in-vitro antimicrobial activity of roxithromycin is similar to that of erythromycin, and the in-vivo activity is 1-4 times that of the lattert.

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