Dihydrogen (OC-6-13)-dichloro[7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-dipropionato(4-)-N<sup>21</sup>,N<sup>22</sup>,N<sup>23</sup>,N<sup>24</sup>]stannate(2-)-
dihydrogen (oc-6-13)-dichloro[7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-dipropionato(4-)-n<sup>21</sup>,n<sup>22</sup>,n<sup>23</sup>,n<sup>24</sup>]stannate(2-)-