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Morpholin-4-yl-piperazin-1-yl-methanone98834-08-3100 % similar N,N-Diethyl-1-piperazinecarboxamide119-54-059 % similar 4-(1-Piperazinylacetyl)morpholine39890-46-556 % similar Piperazine-1-carboxylic acid dimethylamide41340-78-755 % similar 4-(2-Piperazin-1-yl-ethyl)-morpholine4892-89-146 % similar Methyl piperazine-1-carboxylate50606-31-044 % similar 1-Acetylpiperazine13889-98-043 % similar 4-Morpholinecarbonyl chloride15159-40-743 % similar N-Acetylmorpholine1696-20-443 % similar 1,1'-Carbonyldipyrrolidine81759-25-342 % similar 4-(Chloroacetyl)morpholine1440-61-542 % similar (Piperazin-1-yl)(tetrahydrofuran-2-yl)methanone63074-07-742 % similar Ethyl 1-piperazinecarboxylate120-43-441 % similar 1-Benzoylpiperazine13754-38-640 % similar tert-Butyl piperazine-1-carboxylate57260-71-640 % similar 1-[2-(2-Hydroxyethoxy)ethyl]piperazine13349-82-139 % similar Acryloylmorpholine5117-12-439 % similar α-Oxo-1-piperazineacetic acid691394-09-939 % similar 2-Methyl-1-(piperazin-1-yl)propan-1-one71260-16-739 % similar N-Acetylhomopiperazine61903-11-538 % similar