5z 7e 9 10 seco 5 7 10 19 cholestatrien 1alpha 3beta diol, 1 hydroxycholecalciferol, 1alpha hydroxy vitamin d3							
	
							
							
								
																	
																	
	
								
																	
							
							
																						
								 Alfacalcidol is an active metabolite of Vitamin D, which performs important functions in regulation of the calcium balance and the bone metabolism.