Chemical Structure	CAT No.	CAS	Item Group	Purity
	C4X-13004	109466-74-2	Impurity
	Tacrolimus Impurity 4
	C4X-130040	N/A	Impurity
	Tacrolimus Impurity 40
	C4X-130041	N/A	Impurity
	Tacrolimus Impurity 41
	C4X-130042	N/A	Impurity
	Tacrolimus Impurity 42
	C4X-130043	N/A	Impurity
	Tacrolimus Impurity 43
	C4X-130044	135635-46-0	Impurity
	Tacrolimus Related Compound A
	C4X-130045	N/A	Impurity
	Tacrolimus EP Impurity B
	C4X-130046	139958-51-3	Impurity
	Tacrolimus Impurity 46
	C4X-13005	104987-16-8	Impurity
	Tacrolimus EP Impurity I
	C4X-13006	104987-12-4	Impurity
	Tacrolimus EP Impurity A