S-33
  O=C(N(C(CCCCCCCCCCCCCCCC)CCCCCCCCCCCCCCCC)C7=O)C2=CC=C(C4=CC=C6C5=C(C(N(C(CCCCCCCCCCCCCCCC)CCCCCCCCCCCCCCCC)C6=O)=O)C=CC3=C45)C1=C3C=CC7=C12

N,N‘-Bis(1-hexadecylheptadecyl)-3,4:9,10-perylenebis(dicarboximide); 2,9-bis-(1-hexadecylheptadecyl)anthra[2,1,9-def;6,5,10-d‘e‘f‘]diisoquinoline-1,3,8,10(2H,9H)-tetraone; 2,9-bis-(17-tritriacontanyl)anthra[2,1,9-def;6,5,10-d‘e‘f‘]diisoquinoline-1,3,8,10(2H,9H)-tetraone, RN 139260-33-6:
M.p. 97°C, red crystals. UV (CHCl3): λmax (ε) = 458 nm (19087), 489 (52514), 525.5 (87310). C74H110N2O4 (1316.1) calcd. C 82.13, H 10.87, N 2.13; found C 82.13, H 10.05, N 2.27.

References, RN 139260-33-6:

*1. Langhals, H.; Demmig, S.; Potrawa, T. ‘The relation between packing effects and solid state fluorescence of dyes’, J. Prakt. Chem. (Leipzig) 1991, 333 , 733-748.

2. Langhals, H.; Demmig, S. ‘Perylene dyes and their use as permanent toner in electrophotography and laser printing’, Ger. Offen. 1991, DE 4007618 A1 19910912.

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