has role is protonated form of is tautomer of tertiary alpha-hydroxy ketone geroprotector antifibrotic agent tetracyclines antidepressant antipsychotic agent analgesic antineoplastic agent antihypertensive agent immunosuppressive agent antirheumatic drug antibacterial drug anti-arrhythmia drug tetracenomycin antiparkinson drug minocycline A tetracycline analogue having a dimethylamino group at position 7 and lacking the methyl and hydroxy groups at position 5. (4S,4AS,5AR,12AS)-4,7-BIS(DIMETHYLAMINO)-3,10,12,12A-TETRAHYDROXY-1,11-DIOXO-1,4,4A,5,5A,6,11,12A-OCTAHYDROTETRACENE-2-CARBOXAMIDE CHEBI:50694 neuroprotective agent anti-HIV agent anti-asthmatic agent ophthalmology drug anti-inflammatory agent minocycline(1-) Escherichia coli metabolite minocycline zwitterion