Chemical Structure	CAT No.	CAS	Item Group	Purity
	C4X-130029	N/A	Impurity
	Tacrolimus 21-Carboxy Acid
	C4X-13003	N/A	Impurity
	Tacrolimus Impurity 3
	C4X-130031	123719-19-7	Impurity
	Tacrolimus Impurity 31
	C4X-130032	129039-81-2	Impurity
	Tacrolimus Impurity 32
	C4X-130033	144432-23-5	Impurity
	Oxacyclohexane Open Ring Tacrolimus
	C4X-130035	N/A	Impurity
	Tacrolimus Impurity 35
	C4X-130036	131944-48-4	Impurity
	Tacrolimus Impurity 36
	C4X-130037	N/A	Impurity
	Tacrolimus Impurity 37
	C4X-130038	N/A	Impurity
	Tacrolimus Impurity 38
	C4X-130039	N/A	Impurity
	Tacrolimus Impurity 39