2-phenylethynylbenzene 72234-42-5 501-65-5 Acetylene, diphenyl- (8CI) Biphenylacetylene D204803_ALDRICH 1,2-Diphenylacetylene Acetylene, diphenyl- Benzene, 1,1'-(1,2-ethynediyl)bis- Diphenylacetylene Diphenylethyne Ethyne, diphenyl- NSC5185 Tolan Tolane 1,1'-ethyne-1,2-diyldibenzene NSC 5185 EINECS 207-926-6 AI3-04360 InChI=1/C14H10/c1-3-7-13(8-4-1)11-12-14-9-5-2-6-10-14/h1-10 42700_FLUKA