Erythromycin C (3''-O-demethylerythromycin) is a minor co-metabolite of Erythromycin. Other metabolites include A, B, and D Erythromycin C exhibits a narrower spectrum of antibiotic activity and is less active than A and B. Erythromycin C is soluble in ethanol, methanol, DMF and DMSO but has limited water solubility.
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