Metoprolol impurities and related standards

14 reference standards related to Metoprolol held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

CAS numbers are listed for 14 of 14; 13 entries carry a structure drawing.

Metoprolol — related standards
Compound	CAS No.	Catalogue No.	Formula	MW
Metoprolol Impurity 30	123195-72-2	RS-M043002	C12H18O2	194.27
Metoprolol Impurity 26	1416440-64-6	RS-M043003	C15H22O5	282.33
Metoprolol USP Impurity D HCl	1486464-40-7	RS-M043004	C27H41NO6.HCl	475.62
Metoprolol EP Impurity O	154784-36-8	RS-M043005	C27H41NO6	475.62
Metoprolol Impurity J	163685-37-8	RS-M043006	C18H31NO5	341.44
Metoprolol Impurity E	163685-38-9	RS-M043007	C15H25NO3	267.36
Metoprolol Impurity 5	230975-30-1	RS-M043008	C21H28O5	360.45
Metoprolol EP Impurity M	343785-33-1	RS-M043009	C9H22N2O	174.29
Metoprolol EP Impurity G	501-94-0	RS-M043010	C8H10O2	138.16
Metoprolol Impurity 7	56718-70-8	RS-M043011	C12H16O3	208.26
Metoprolol EP Impurity B	56718-71-9	RS-M043012	C9H12O2	152.19
Metoprolol Impurity 3	84697-14-3	RS-M043013	C13H20O2	208.3
Metoprolol Impurity I	933468-54-3	RS-M043014	C14H21NO2	235.33
Metoprolol Impurity A	109632-08-8	RS-M043001	C14H23NO3	253.34

Structures

Metoprolol Impurity 30

CAS 123195-72-2RS-M043002
COA per lot
Metoprolol Impurity 26

CAS 1416440-64-6RS-M043003
COA per lot
Metoprolol USP Impurity D HCl

CAS 1486464-40-7RS-M043004
COA per lot
Metoprolol EP Impurity O

CAS 154784-36-8RS-M043005
COA per lot
Metoprolol Impurity J

CAS 163685-37-8RS-M043006
COA per lot
Metoprolol Impurity E

CAS 163685-38-9RS-M043007
COA per lot
Metoprolol Impurity 5

CAS 230975-30-1RS-M043008
COA per lot
Metoprolol EP Impurity M

CAS 343785-33-1RS-M043009
COA per lot

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