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Sichuan Guanghan Bio-Tech Co., Ltd.     Catalogue(Piperazine Series） NO Products Name CAS NO 1 1-Benzyl-piperazine Hydrochloride 110475-31-5 2 1-Benzyl-piperazine Di-Hydrochloride 5321-61-1 3 1-(3-Chlorophenyl)-piperazine 51639-49-7 4 1-(4-MethoxyPhenyl)Piperazine Di-Hydrochloride 38869-47-5 5 N-Boc-piperazine 57260-71-6 6 4-N-Boc-piperazine-2-carboxylic acid 128019-59-0 7 (S)-2-Methyl-Piperazine 74879-18-8 8 (R)-2-Methyl-Piperazine 75336-86-6 9 4-Boc-2-Methyl-Piperazine 120737-59-9 10 (R)-4-N-Boc-2-MethylPiperazine 163765-44-4 11 (S)-4-N-Boc-2-MethylPiperazinee 147081-29-6 12 1-benzyl-4-phenylpiperazine 3074-46-2 13 Piperazine-2-Carboxylic Acid Di-Hydrochloride 3022-15-9 14 (S)-Piperazine-2-Carboxylic acid Di-Hydrochloride 158663-69-5 15 (R)-Piperazine-2-Carboxylic acid Di-Hydrochloride 126330-90-3 16 1,4-Dibenzylpiperazine-2-carboxylic acid 215597-67-4 17 1-Boc-4-Cbz-2-piperazine carboxylic acid 129365-23-7 18 N-4-Boc-N-1-Cbz-2-piperazine carboxylic acid 126937-41-5