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2-Methyl-1-(piperazin-1-yl)propan-1-one71260-16-7100 % similar 1-(Cyclopropylcarbonyl)piperazine Hydrochloride1021298-67-855 % similar (Piperazin-1-yl)(tetrahydrofuran-2-yl)methanone63074-07-755 % similar 1-Acetylpiperazine13889-98-048 % similar Piperidin-4-yl(pyrrolidin-1-yl)methanone35090-95-047 % similar Piperazine-1-carboxylic acid dimethylamide41340-78-745 % similar (S)-1,4-Benzodioxan-2-carboxypiperazine401941-54-644 % similar N-1,4-Benzodioxane-2-carbonyl piperazine70918-00-244 % similar N,N-Diethyl-1-piperazinecarboxamide119-54-044 % similar Methyl piperazine-1-carboxylate50606-31-044 % similar N-Acetylhomopiperazine61903-11-542 % similar Ethyl 1-piperazinecarboxylate120-43-441 % similar 1-(1,4-Benzodioxan-2-ylcarbonyl)piperazine hydrochloride70918-74-041 % similar tert-Butyl piperazine-1-carboxylate57260-71-640 % similar α-Oxo-1-piperazineacetic acid691394-09-939 % similar Morpholin-4-yl-piperazin-1-yl-methanone98834-08-339 % similar Isopropylpiperazine4318-42-738 % similar (Hexahydro-1H-azepin-1-yl)-3-piperidinylmethanone690632-28-138 % similar 1-Benzoylpiperazine13754-38-636 % similar tert-Butyl 1,4-diazepane-1-carboxylate112275-50-036 % similar