57471 大观霉素 AR 1g 100

Spectinomycin dihydrochloride pentahydrate Molecular Formula ： C 14 H 24 N 2 O 7 · 2HCl · 5H 2 O Molecular Weight ： 495.35 CAS Number ： 22189-32-8 Descriptions ： Biochem/physiol Actions ： Mode of Action: Inhibits protein synthesis (elongation) by interfering with peptidyl tRNA translocation. Antimicrobial spectrum: Gram-negative and Gram-positive bacteria (Gonnococcus only). Mode of Resistance: Mutation in rpsE (the gene for ribosomal protein S5) prevents binding of spectinomycin. Properties ： potency ……………………………………………………….………….. ≥ 603 μ g storage temp. ………………………………………………..…………2-8°C