Synonyms: Q-Switch II dye;21016-22-8;AC1L3HT9;1-Benzopyrylium, 8-(5-(6,7-dihydro-2,4-bis(4-(pentyloxy)phenyl)-5H-1-benzopyran-8-yl)-2,4-pentadien-1-ylidene)-5,6,7,8-tetrahydro-2,4-diphenyl-, perchlorate (1:1);1-Benzopyrylium, 8-(5-(6,7-dihydro-2,4-bis(4-(pentyloxy)phenyl)-5H-1-benzopyran-8-yl)-2,4-pentadienylidene)-5,6,7,8-tetrahydro-2,4-diphenyl-, perchlorate;1-Benzopyrylium, 8-[5-[6,7-dihydro-2,4-bis[ 4-(pentyloxy)phenyl]-5H-1-benzopyran-8-yl]-2,4-pentadienylidene ]-5,6,7,8-tetrahydro-2,4-diphenyl-, perchlorate;39289-11-7;39363-75-2;8-[5-[2,4-bis(4-pentoxyphenyl)-6,7-dihydro-5H-chromen-8-yl]penta-2,4-dienylidene]-2,4-diphenyl-6,7-dihydro-5H-chromen-1-ium perchlorate