Name	CAS NO.
	N-phenyl piperazine	92-54-6/6269-89-2
	1-(2-fluorophenyl)piperazine	1011-15-0/1011-16-1
	1-(2-chlorophenyl)piperazine	39512-50-0/41202-32-8
	1-(4-chlorophenyl)piperazine	38212-33-8 /38869-46-4
	1-(4-fluorophenyl)piperazine	2252-63-3 / 64090-19-3
	1-(4- methoxyphenyl)piperazine	38212-30-5 / 38869-47-5
	1-(2-methylphenyl)piperazine	39512-51-1/70849-60-4
	1-(3-nitrophenyl)piperazine	54054-85-2
	1-(4-nitrophenyl)piperazine	6269-89-2
	1-(2,3-dichloro phenyl)piperazine hcl	119532-26-2