guamecycline 626.281 626.662 C29H38N8O8 CAS:16545-11-2 CHEBI:135854 DIRJDIBCAHCCFL-AQFAATAFSA-N Drug_Central:3273 InChI=1S/C29H38N8O8/c1-28(44)13-5-4-6-16(38)17(13)21(39)18-14(28)11-15-20(35(2)3)22(40)19(24(42)29(15,45)23(18)41)25(43)33-12-36-7-9-37(10-8-36)27(32)34-26(30)31/h4-6,14-15,20,38,40-41,44-45H,7-12H2,1-3H3,(H,33,43)(H5,30,31,32,34)/t14-,15-,20-,28+,29-/m0/s1 O[C@@]12[C@@](C[C@]3(C(=C1O)C(=O)C4=C([C@@]3(C)O)C=CC=C4O)[H])([C@H](N(C)C)C(=C(C2=O)C(NCN5CCN(CC5)C(NC(=N)N)=N)=O)O)[H] Xanthomycin A chebi_ontology tetrabiguanide xantomicina tetracyclines