Chemical Structure	CAT No.	CAS	Item Group	Purity
	C4X-105250	1015073-43-4	Impurity
	Sofosbuvir Impurity 50
	C4X-105251	1233335-78-8	Impurity
	Sofosbuvir Impurity 51
	C4X-105252	N/A	Impurity
	Sofosbuvir Impurity 52
	C4X-105253	N/A	Impurity
	"(S)-(((2R,3R,4S,5R)-L-Sofosbuvir Isomer"
	C4X-105254	1496552-16-9	Impurity
	"(R)-(((2R,3R,4R,5R)-D-Sofosbuvir Isomer"
	C4X-105255	N/A	Impurity
	Sofosbuvir Impurity 55
	C4X-105256	1496551-70-2	Impurity
	Sofosbuvir Impurity 56
	C4X-105257	1337529-56-2	Impurity
	Sofosbuvir Impurity 57
	C4X-105258	1714114-25-6	Impurity
	Sofosbuvir Impurity 58
	C4X-105259	1627824-09-2	Impurity
	Sofosbuvir Impurity 59