(2Z,6Z,11Z,17E)-5,9,10,14-tetraethyl-4,15-dimethyl-26,27,28-triazahexacyclo[16.6.1.1~3,6~.1~8,11~.1~13,16~.0~19,24~]octacosa-1(25),2,4,6,8(27),9,11,13,15,17,19,21,23-tridecaene-21-carbaldehyde (non-pr 1H-naphtho[2,1,8-mna]xanthen-1-one, 5-methoxy- InChI=1/C36H37N3O/c1-7-25-20(5)31-15-23-14-24(30-13-22(19-40)11-12-29(23)30)16-32-21(6)26(8-2)34(38-32)18-36-28(10-4)27(9-3)35(39-36)17-33(25)37-31/h11-19,37-38H,7-10H2,1-6H3/b23-15+,24-16+,31-15-,32-16-,33-17-,34-18-,35-17-,36-18 triaza[18]annulenes