Spectinomycin dihydrochloride pentahydrate (Standard) is the standard substance of Spectinomycin dihydrochloride pentahydrate, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Spectinomycin dihydrochloride pentahydrate (Spectogard) is an antibiotic produced by Streptomyces spectabilis. It is active against gram-negative bacteria and used for the treatment of gonorrhea.