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Pharmaceutical Reference Standards

2-(2-Methoxyethyl)phenol

Picture of 2-(2-Methoxyethyl)phenol
CAT No: SZ-M021002
CAS No: 330976-39-1
Mol.F. : C9H12O2
Mol.Wt. : 152.2
Inv. Status: In Stock
SZ-M021002
CAS No:330976-39-1
Mol.F.: C9H12O2
Mol.Wt.: 152.2
Inv. Status: In Stock

Metoprolol EP Impurity A

Picture of Metoprolol EP Impurity A
CAT No: SZ-M021005
CAS No: 109632-08-8
Mol.F. : C14H23NO3
Mol.Wt. : 253.3
Inv. Status: In Stock
SZ-M021005
CAS No:109632-08-8
Mol.F.: C14H23NO3
Mol.Wt.: 253.3
Inv. Status: In Stock

Metoprolol EP Impurity B

Picture of Metoprolol EP Impurity B
CAT No: SZ-M021006
CAS No: 56718-71-9
Mol.F. : C9H12O2
Mol.Wt. : 152.2
Inv. Status: In Stock
SZ-M021006
CAS No:56718-71-9
Mol.F.: C9H12O2
Mol.Wt.: 152.2
Inv. Status: In Stock

Metoprolol EP Impurity C

Picture of Metoprolol EP Impurity C
CAT No: SZ-M021007
CAS No: NA
Mol.F. : C13H19NO3 : C4H4O4
Mol.Wt. : 237.3 : 116.1
Inv. Status: Custom Synthesis
Rel. CAT No : SZ-B003011,
SZ-M021007
CAS No:NA
Mol.F.: C13H19NO3 : C4H4O4
Mol.Wt.: 237.3 : 116.1
Inv. Status: Custom Synthesis

Metoprolol EP Impurity D

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CAT No: SZ-M021008
CAS No: 62572-90-1
Mol.F. : C12H18O4
Mol.Wt. : 226.3
Inv. Status: In Stock
SZ-M021008
CAS No:62572-90-1
Mol.F.: C12H18O4
Mol.Wt.: 226.3
Inv. Status: In Stock

Metoprolol EP Impurity E

Picture of Metoprolol EP Impurity E
CAT No: SZ-M021009
CAS No: 163685-38-9
Mol.F. : C15H25NO3
Mol.Wt. : 267.4
Inv. Status: In Stock
SZ-M021009
CAS No:163685-38-9
Mol.F.: C15H25NO3
Mol.Wt.: 267.4
Inv. Status: In Stock

Metoprolol EP Impurity F

Picture of Metoprolol EP Impurity F
CAT No: SZ-M021010
CAS No: 7695-63-8
Mol.F. : C12H19NO2
Mol.Wt. : 209.3
Inv. Status: In Stock
SZ-M021010
CAS No:7695-63-8
Mol.F.: C12H19NO2
Mol.Wt.: 209.3
Inv. Status: In Stock

Metoprolol EP Impurity G

Picture of Metoprolol EP Impurity G
CAT No: SZ-M021011
CAS No: 501-94-0
Mol.F. : C8H10O2
Mol.Wt. : 138.2
Inv. Status: In Stock
SZ-M021011
CAS No:501-94-0
Mol.F.: C8H10O2
Mol.Wt.: 138.2
Inv. Status: In Stock

Metoprolol EP Impurity H

Picture of Metoprolol EP Impurity H
CAT No: SZ-M021012
CAS No: NA
Mol.F. : C14H23NO3 : HCl
Mol.Wt. : 253.3 : 36.5
Inv. Status: In Stock
SZ-M021012
CAS No:NA
Mol.F.: C14H23NO3 : HCl
Mol.Wt.: 253.3 : 36.5
Inv. Status: In Stock

Metoprolol EP Impurity J

Picture of Metoprolol EP Impurity J
CAT No: SZ-M021014
CAS No: 163685-37-8
Mol.F. : C18H31NO5
Mol.Wt. : 341.4
Inv. Status: In Stock
SZ-M021014
CAS No:163685-37-8
Mol.F.: C18H31NO5
Mol.Wt.: 341.4
Inv. Status: In Stock

Metoprolol EP Impurity M

Picture of Metoprolol EP Impurity M
CAT No: SZ-M021015
CAS No: 73313-36-7
Mol.F. : C9H22N2O : 2HCl
Mol.Wt. : 174.3 : 2(36.5)
Inv. Status: In Stock
Rel. CAS No : 343785-33-1 (free base)
SZ-M021015
CAS No:73313-36-7
Mol.F.: C9H22N2O : 2HCl
Mol.Wt.: 174.3 : 2(36.5)
Inv. Status: In Stock
Rel. CAS No : 343785-33-1 (free base)

Metoprolol EP Impurity N

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CAT No: SZ-M021016
CAS No: NA
Mol.F. : C6H15NO2 : HCl
Mol.Wt. : 133.2 : 36.5
Inv. Status: In Stock
Rel. CAS No : 6452-57-9 (free base)
SZ-M021016
CAS No:NA
Mol.F.: C6H15NO2 : HCl
Mol.Wt.: 133.2 : 36.5
Inv. Status: In Stock
Rel. CAS No : 6452-57-9 (free base)

Metoprolol EP Impurity O

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CAT No: SZ-M021017
CAS No: 1486464-40-7
Mol.F. : C27H41NO6 : HCl
Mol.Wt. : 475.6 : 36.5
Inv. Status: In Stock
Rel. CAS No : 154784-36-8 (free base)
SZ-M021017
CAS No:1486464-40-7
Mol.F.: C27H41NO6 : HCl
Mol.Wt.: 475.6 : 36.5
Inv. Status: In Stock
Rel. CAS No : 154784-36-8 (free base)

Metoprolol Epoxy Ester Impurity

Picture of Metoprolol Epoxy Ester Impurity
CAT No: SZ-M021018
CAS No: 76805-25-9
Mol.F. : C13H16O4
Mol.Wt. : 236.3
Inv. Status: Custom Synthesis
SZ-M021018
CAS No:76805-25-9
Mol.F.: C13H16O4
Mol.Wt.: 236.3
Inv. Status: Custom Synthesis

Metoprolol Epoxy Impurity

Picture of Metoprolol Epoxy Impurity
CAT No: SZ-M021019
CAS No: 122-60-1
Mol.F. : C9H10O2
Mol.Wt. : 150.2
Inv. Status: In Stock
SZ-M021019
CAS No:122-60-1
Mol.F.: C9H10O2
Mol.Wt.: 150.2
Inv. Status: In Stock

Metoprolol Hydroxy Epoxide Impurity

Picture of Metoprolol Hydroxy Epoxide Impurity
CAT No: SZ-M021020
CAS No: 104857-48-9
Mol.F. : C11H14O3
Mol.Wt. : 194.2
Inv. Status: In Stock
SZ-M021020
CAS No:104857-48-9
Mol.F.: C11H14O3
Mol.Wt.: 194.2
Inv. Status: In Stock

Metoprolol Hydroxy Ester Impurity

Picture of Metoprolol Hydroxy Ester Impurity
CAT No: SZ-M021021
CAS No: 17138-28-2
Mol.F. : C10H12O3
Mol.Wt. : 180.2
Inv. Status: Custom Synthesis
SZ-M021021
CAS No:17138-28-2
Mol.F.: C10H12O3
Mol.Wt.: 180.2
Inv. Status: Custom Synthesis

Metoprolol Methoxy Epoxide Impurity

Picture of Metoprolol Methoxy Epoxide Impurity
CAT No: SZ-M021022
CAS No: 56718-70-8
Mol.F. : C12H16O3
Mol.Wt. : 208.3
Inv. Status: In Stock
SZ-M021022
CAS No:56718-70-8
Mol.F.: C12H16O3
Mol.Wt.: 208.3
Inv. Status: In Stock

Metoprolol R-Isomer

Picture of Metoprolol R-Isomer
CAT No: SZ-M021023
CAS No: 81024-43-3
Mol.F. : C15H25NO3
Mol.Wt. : 267.4
Inv. Status: Custom Synthesis
SZ-M021023
CAS No:81024-43-3
Mol.F.: C15H25NO3
Mol.Wt.: 267.4
Inv. Status: Custom Synthesis

Metoprolol S-Isomer

Picture of Metoprolol S-Isomer
CAT No: SZ-M021024
CAS No: 81024-42-2
Mol.F. : C15H25NO3
Mol.Wt. : 267.4
Inv. Status: Custom Synthesis
SZ-M021024
CAS No:81024-42-2
Mol.F.: C15H25NO3
Mol.Wt.: 267.4
Inv. Status: Custom Synthesis

Metoprolol Succinate

Picture of Metoprolol Succinate
CAT No: SZ-M021025
CAS No: 98418-47-4
Mol.F. : C15H25NO3 : 1/2(C4H6O4)
Mol.Wt. : 267.4 : 1/2(118.1)
Inv. Status: In Stock
SZ-M021025
CAS No:98418-47-4
Mol.F.: C15H25NO3 : 1/2(C4H6O4)
Mol.Wt.: 267.4 : 1/2(118.1)
Inv. Status: In Stock

Metoprolol Tartrate

Picture of Metoprolol Tartrate
CAT No: SZ-M021026
CAS No: 56392-17-7
Mol.F. : C15H25NO3.C4H6O6
Mol.Wt. : 267.37 ; 150.1
Inv. Status: Custom Synthesis
SZ-M021026
CAS No:56392-17-7
Mol.F.: C15H25NO3.C4H6O6
Mol.Wt.: 267.37 ; 150.1
Inv. Status: Custom Synthesis

Metoprolol USP Related Compound B

Picture of Metoprolol USP Related Compound B
CAT No: SZ-M021027
CAS No: 56718-76-4
Mol.F. : C12H17ClO3
Mol.Wt. : 244.7
Inv. Status: In Stock
SZ-M021027
CAS No:56718-76-4
Mol.F.: C12H17ClO3
Mol.Wt.: 244.7
Inv. Status: In Stock

3-phenoxypropane-1,2-diol

Picture of 3-phenoxypropane-1,2-diol
CAT No: SZ-M021028
CAS No: 538-43-2
Mol.F. : C9H12O3
Mol.Wt. : 168.2
Inv. Status: In Stock
SZ-M021028
CAS No:538-43-2
Mol.F.: C9H12O3
Mol.Wt.: 168.2
Inv. Status: In Stock

Metoprolol Acid Ethyl Ester

Picture of Metoprolol Acid Ethyl Ester
CAT No: SZ-M021029
CAS No: 29112-40-1
Mol.F. : C16H25NO4
Mol.Wt. : 295.4
Inv. Status: Custom Synthesis
SZ-M021029
CAS No:29112-40-1
Mol.F.: C16H25NO4
Mol.Wt.: 295.4
Inv. Status: Custom Synthesis

Metoprolol Acid Methyl Ester

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CAT No: SZ-M021030
CAS No: 29121-23-1
Mol.F. : C15H23NO4
Mol.Wt. : 281.4
Inv. Status: Custom Synthesis
SZ-M021030
CAS No:29121-23-1
Mol.F.: C15H23NO4
Mol.Wt.: 281.4
Inv. Status: Custom Synthesis

Metoprolol Acid Sodium Salt

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CAT No: SZ-M021031
CAS No: NA
Mol.F. : C14H21NO4 : Na
Mol.Wt. : 267.3 : 23.0
Inv. Status: Custom Synthesis
SZ-M021031
CAS No:NA
Mol.F.: C14H21NO4 : Na
Mol.Wt.: 267.3 : 23.0
Inv. Status: Custom Synthesis

Metoprolol Bis Propanol

Picture of Metoprolol Bis Propanol
CAT No: SZ-M021032
CAS No: 230975-30-1
Mol.F. : C21H28O5
Mol.Wt. : 360.4
Inv. Status: In Stock
SZ-M021032
CAS No:230975-30-1
Mol.F.: C21H28O5
Mol.Wt.: 360.4
Inv. Status: In Stock

Metoprolol lactose Adduct Impurity

Picture of Metoprolol lactose Adduct Impurity
CAT No: SZ-M021033
CAS No: NA
Mol.F. : C28H47NO11
Mol.Wt. : 573.7
Inv. Status: Custom Synthesis
SZ-M021033
CAS No:NA
Mol.F.: C28H47NO11
Mol.Wt.: 573.7
Inv. Status: Custom Synthesis

Metoprolol Process Impurity 4

Picture of Metoprolol Process Impurity 4
CAT No: SZ-M021034
CAS No: 84803-56-5
Mol.F. : C9H13NO
Mol.Wt. : 151.2
Inv. Status: In Stock
SZ-M021034
CAS No:84803-56-5
Mol.F.: C9H13NO
Mol.Wt.: 151.2
Inv. Status: In Stock

Metoprolol Impurity T

Picture of Metoprolol Impurity T
CAT No: SZ-M021035
CAS No: 73723-85-0
Mol.F. : C15H23NO4
Mol.Wt. : 281.4
Inv. Status: Custom Synthesis
SZ-M021035
CAS No:73723-85-0
Mol.F.: C15H23NO4
Mol.Wt.: 281.4
Inv. Status: Custom Synthesis

Metoprolol Succinamide

Picture of Metoprolol Succinamide
CAT No: SZ-M021037
CAS No: NA
Mol.F. : C19H29NO6
Mol.Wt. : 367.4
Inv. Status: Custom Synthesis
SZ-M021037
CAS No:NA
Mol.F.: C19H29NO6
Mol.Wt.: 367.4
Inv. Status: Custom Synthesis

Metoprolol Impurity 1

Picture of Metoprolol Impurity 1
CAT No: SZ-M021038
CAS No: 32846-01-8
Mol.F. : C9H12O2
Mol.Wt. : 152.2
Inv. Status: In Stock
SZ-M021038
CAS No:32846-01-8
Mol.F.: C9H12O2
Mol.Wt.: 152.2
Inv. Status: In Stock

Metoprolol Impurity 2

Picture of Metoprolol Impurity 2
CAT No: SZ-M021039
CAS No: 13398-94-2
Mol.F. : C8H10O2
Mol.Wt. : 138.2
Inv. Status: Custom Synthesis
SZ-M021039
CAS No:13398-94-2
Mol.F.: C8H10O2
Mol.Wt.: 138.2
Inv. Status: Custom Synthesis

Methyl 4 –(4-hydroxybutyl)benzoate

Picture of Methyl 4 –(4-hydroxybutyl)benzoate
CAT No: SZ-M021040
CAS No: 123910-88-3
Mol.F. : C12H16O3
Mol.Wt. : 208.3
Inv. Status: Custom Synthesis
SZ-M021040
CAS No:123910-88-3
Mol.F.: C12H16O3
Mol.Wt.: 208.3
Inv. Status: Custom Synthesis

N-Desisopropyl Metoprolol

Picture of N-Desisopropyl Metoprolol
CAT No: SZ-M021043
CAS No: 74027-60-4
Mol.F. : C12H19NO3
Mol.Wt. : 225.3
Inv. Status: Custom Synthesis
SZ-M021043
CAS No:74027-60-4
Mol.F.: C12H19NO3
Mol.Wt.: 225.3
Inv. Status: Custom Synthesis

Metoprolol Impurity 3

Picture of Metoprolol Impurity 3
CAT No: SZ-M021044
CAS No: 84697-14-3
Mol.F. : C13H20O2
Mol.Wt. : 208.3
Inv. Status: Custom Synthesis
SZ-M021044
CAS No:84697-14-3
Mol.F.: C13H20O2
Mol.Wt.: 208.3
Inv. Status: Custom Synthesis

Metoprolol Impurity 4

Picture of Metoprolol Impurity 4
CAT No: SZ-M021045
CAS No: 123195-72-2
Mol.F. : C12H18O2
Mol.Wt. : 194.3
Inv. Status: Custom Synthesis
SZ-M021045
CAS No:123195-72-2
Mol.F.: C12H18O2
Mol.Wt.: 194.3
Inv. Status: Custom Synthesis

Metoprolol Impurity 5

Picture of Metoprolol Impurity 5
CAT No: SZ-M021046
CAS No: 4769-73-7
Mol.F. : C9H11ClO2
Mol.Wt. : 186.6
Inv. Status: Custom Synthesis
SZ-M021046
CAS No:4769-73-7
Mol.F.: C9H11ClO2
Mol.Wt.: 186.6
Inv. Status: Custom Synthesis

Stable Isotopes and Metabolites

Metoprolol D5

Picture of Metoprolol D5
CAT No: SZ-M021D01
CAS No: 959786-79-9
Mol.F. : C15H20D5NO3
Mol.Wt. : 272.4
Inv. Status: Custom Synthesis
SZ-M021D01
CAS No:959786-79-9
Mol.F.: C15H20D5NO3
Mol.Wt.: 272.4
Inv. Status: Custom Synthesis

Metoprolol D7

Picture of Metoprolol D7
CAT No: SZ-M021D02
CAS No: 959787-96-3
Mol.F. : C15H18D7NO3
Mol.Wt. : 274.4
Inv. Status: Custom Synthesis
SZ-M021D02
CAS No:959787-96-3
Mol.F.: C15H18D7NO3
Mol.Wt.: 274.4
Inv. Status: Custom Synthesis

Metoprolol Dimer D10

Picture of Metoprolol Dimer D10
CAT No: SZ-M021D03
CAS No: NA
Mol.F. : C27H31D10NO6
Mol.Wt. : 485.7
Inv. Status: Custom Synthesis
Rel. CAS No : 154784-36-8 (Unlabeled)
SZ-M021D03
CAS No:NA
Mol.F.: C27H31D10NO6
Mol.Wt.: 485.7
Inv. Status: Custom Synthesis
Rel. CAS No : 154784-36-8 (Unlabeled)

Possible Nitroso Standards

N-Nitrosometoprolol

Picture of N-Nitrosometoprolol
CAT No: SZ-M021036
CAS No: 138768-62-4
Mol.F. : C15H24N2O4
Mol.Wt. : 296.4
Inv. Status: In Stock
SZ-M021036
CAS No:138768-62-4
Mol.F.: C15H24N2O4
Mol.Wt.: 296.4
Inv. Status: In Stock

N-Nitroso Metoprolol EP Impurity A

Picture of N-Nitroso Metoprolol EP Impurity A
CAT No: SZ-M021041
CAS No: NA
Mol.F. : C14H22N2O4
Mol.Wt. : 282.3
Inv. Status: Custom Synthesis
SZ-M021041
CAS No:NA
Mol.F.: C14H22N2O4
Mol.Wt.: 282.3
Inv. Status: Custom Synthesis

N-Nitroso Metoprolol EP Impurity C

Picture of N-Nitroso Metoprolol EP Impurity C
CAT No: SZ-M021042
CAS No: NA
Mol.F. : C13H18N2O4
Mol.Wt. : 266.3
Inv. Status: Custom Synthesis
SZ-M021042
CAS No:NA
Mol.F.: C13H18N2O4
Mol.Wt.: 266.3
Inv. Status: Custom Synthesis