A member of the class of rifamycins that exhibits antibiotic and antitubercular properties. ChEBI: Rifamycin SV is a member of the class of rifamycins that exhibits antibiotic and antitubercular properties. It has a role as a bacterial metabolite, an antimicrobial agent and an antitubercular agent. It is a member of rifamycins, an acetate ester, a cyclic ketal, a lactam, a macrocycle, a polyphenol and an organic heterotetracyclic compound. It is a conjugate acid of a rifamycin SV(1-).