chemical formula, structural formula and 3d ball-and-stick model of antibiotic tetracycline, white background

acne anthrax antibiotic background biochemistry biology broad brucella brucellosis chemical chemistry cholera compounding cut dimensional disease fever formula health illustration lyme malaria medicine melitensis model molecular molecule natural nitrogen object organic out oxygen pallidum people pharmaceutical pharmacy plague research science spectrum spotted structural structure syphilis tetracycline three treponema white