Tetrapyrido[3,4-b:3',4'-g:3'',4''-l:3''',4'''-q]porphyrazine(8CI); 5,28:14,19-Diimino-7,12:26,21-dinitrilotetrapyrido[3,4-c:3',4'-h:3'',4''-m:3''',4'''-r][1,6,11,16]tetraazacycloeicosine;Tetra(3-pyridyl)porphyrazine
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