SPECTINOMYCIN SULFATE HAS A CONTENT OF 93.0% TO 102.0% CALCULATED WITH REFERENCE TO THE ANHYDROUS SUBSTANCE. (4R)-DIHYDROSPECTINOMYCIN SULFATE: MAXIMUM 2.0% (ANHYDROUS SUBSTANCE); SUM OF THE CONTENTS OF SPECTINOMYCIN SULFATE AND (4R)-DIHYDROSPECTINOMYCIN SULFATE: 93.0% TO 102.0% (ANHYDROUS SUBSTANCE).