Explanatory notes
… and its derivatives; salts thereof 2941.50 - Erythromycin and its derivatives; salts thereof 2941.90 - … (INN) and sirpefenicol (INN). (5) Macrolides , e.g., erythromycin*, amphotericin B, tylosin. (6) Polypeptides … because it is not antibiotically active. Subheading 2941.50 Erythromycin derivatives are active antibiotics whose …