has role is conjugate acid of is conjugate base of zwitterion tetracycline antiprotozoal drug antibacterial drug protein synthesis inhibitor tetracycline(1-) tetracycline zwitterion (1S,4aS,11S,11aS,12aS)-3-carbamoyl-1-(dimethylazaniumyl)-4a,5,7,11-tetrahydroxy-11-methyl-4,6-dioxo-1,4,4a,6,11,11a,12,12a-octahydrotetracen-2-olate 0 444.153 444.43460 A zwitterion obtained by transfer of a proton from the 2-hydroxy group to the 1-amino group of tetracycline. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). C22H24N2O8 CHEBI:77932 C[NH+](C)[C@H]1[C@@H]2C[C@H]3C(=C(O)[C@]2(O)C(=O)C(C(N)=O)=C1[O-])C(=O)c1c(O)cccc1[C@@]3(C)O InChI=1S/C22H24N2O8/c1-21(31)8-5-4-6-11(25)12(8)16(26)13-9(21)7-10-15(24(2)3)17(27)14(20(23)30)19(29)22(10,32)18(13)28/h4-6,9-10,15,25,27-28,31-32H,7H2,1-3H3,(H2,23,30)/t9-,10-,15-,21+,22-/m0/s1 OFVLGDICTFRJMM-WESIUVDSSA-N chebi_ontology tetracycline