7 ethyl 2 3 4 6 tetramethyldeca 1 8 diene July 8, 2019 16 32 64 128 3-ethyl-5-methyl-1 6 8-decatriyne 2 4 7 9-tetramethyldec-5-yne-4 7-diol 6-ethyl-2 2 4 6 8 8-hexamethyldecan 2 4 7 9-tetramethyl-5-decyne-4 7-diol 2 4 7 9-tetramethyldec-5-in-4 7-diol