Chemical Structure	CAT No.	CAS	Item Group	Purity
	C4X-129845	N/A	Impurity
	Dobutamine Impurity 45
	C4X-12985	69617-84-1	Impurity
	Dobutamine Impurity 5
	C4X-12986	67952-38-9	Impurity
	Dobutamine Impurity 6
	C4X-12987	126521-63-9	Impurity
	Dobutamine Impurity 7
	C4X-12988	14165-67-4	Impurity
	Dobutamine Impurity 8
	C4X-12989	N/A	Impurity
	Dobutamine Impurity 9
	C4X-13001	N/A	Impurity
	Tacrolimus Impurity 1
	C4X-130012	131944-48-4?E-isomer?	Impurity
	"(E/Z)-FK-506 26,28-Allylic Ester Rearrangement Impurity"
	C4X-130015	N/A	Impurity
	Tacrolimus Impurity 15
	C4X-130018	1393890-33-9	Impurity
	Tacrolimus EP Impurity F