streptomycin streptomycin(3+) Trication of streptomycin arising from protonation of the guanidino and secondary amino groups. 584.59790 streptomycin trication 584.28750 C21H42N7O12 (1R,2R,3S,4R,5R,6S)-2,4-bis{[amino(iminio)methyl]amino}-3,5,6-trihydroxycyclohexyl 5-deoxy-2-O-[2-deoxy-2-(methylammonio)-alpha-L-glucopyranosyl]-3-C-formyl-alpha-L-lyxofuranoside C[NH2+][C@H]1[C@H](O)[C@@H](O)[C@H](CO)O[C@H]1O[C@H]1[C@@H](O[C@@H](C)[C@]1(O)C=O)O[C@H]1[C@H](O)[C@@H](O)[C@H](NC(N)=[NH2+])[C@@H](O)[C@@H]1NC(N)=[NH2+] CHEBI:58007 streptomycin +3 chebi_ontology InChI=1S/C21H39N7O12/c1-5-21(36,4-30)16(40-17-9(26-2)13(34)10(31)6(3-29)38-17)18(37-5)39-15-8(28-20(24)25)11(32)7(27-19(22)23)12(33)14(15)35/h4-18,26,29,31-36H,3H2,1-2H3,(H4,22,23,27)(H4,24,25,28)/p+3/t5-,6-,7+,8-,9-,10-,11+,12-,13-,14+,15+,16-,17-,18-,21+/m0/s1 UCSJYZPVAKXKNQ-HZYVHMACSA-Q guanidinium ion