A 4785 (OTTO) 4-Aminophenylacetylene, 98% Cas no 14235-81-5 - used in the synthesis of N-methyliminodiethyl 4-(4-ethynylphenyliminomethyl) benzeneboronate. A 4785 (OTTO) 4-Aminophenylacetylene, 98% Cas no 14235-81-5 used as an alkyne component in a synthesis of indoles from nitroarenes in the presence of a palladium-phenantroline catalyst.