Antibiotic Biochemical Filter Marker/Ladder Sera/Media	home > Products > Biochemical   Spectinomycin Dihydrochloride Cat. No. Size Price Description HAA15-5 5g   HAA15-25 25g     Description CAS Number: 21736-83-4   Powder, USP Grade   TESTED AGAINST BOTH SENSITIVE AND RESISTANT CELLS. Spectinomycin Dihydrochloride Pentahydrate MOLECULAR BIOLOGY GRADE C14H24N2O7”¤2HCl MW: 495.3 g/mol Spectinomycin is an aminocyclitol antibiotic which acts by binding to the 30S subunit of the bacterial ribosome and inhibiting protein synthesis. Its activity is generally modest, particularly against gram-positive bacteria. Some gram-negative bacteria are sensitive. Resistance in vitro may develop by chromosomal mutation or may be plasmid located. Store dessicated at -20”ĘC Soluble in water PubChem Chemical ID: 30971