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Pharmaceutical Reference Standards

Carbidopa

Picture of Carbidopa
CAT No: SZ-C075001
CAS No: 28860-95-9
Mol.F. : C10H14N2O4
Mol.Wt. : 226.2
Inv. Status: Custom Synthesis
SZ-C075001
CAS No:28860-95-9
Mol.F.: C10H14N2O4 
Mol.Wt.: 226.2
Inv. Status: Custom Synthesis

Carbidopa Ethyl Ester HCl

Picture of Carbidopa Ethyl Ester HCl
CAT No: SZ-C075004
CAS No: 96115-88-7
Mol.F. : C12H18N2O4 : HCl
Mol.Wt. : 254.3 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 91908-71-3 (free base)
SZ-C075004
CAS No:96115-88-7
Mol.F.: C12H18N2O4 : HCl 
Mol.Wt.: 254.3 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 91908-71-3 (free base)

Carbidopa BP Impurity A

Picture of Carbidopa BP Impurity A
CAT No: SZ-C075005
CAS No: 555-30-6
Mol.F. : C10H13NO4
Mol.Wt. : 211.2
Inv. Status: In Stock
SZ-C075005
CAS No:555-30-6
Mol.F.: C10H13NO4
Mol.Wt.: 211.2
Inv. Status: In Stock

Carbidopa BP/EP Impurity B

Picture of Carbidopa BP/EP Impurity B
CAT No: SZ-C075006
CAS No: 18181-08-3
Mol.F. : C11H15NO4
Mol.Wt. : 225.2
Inv. Status: In Stock
SZ-C075006
CAS No:18181-08-3
Mol.F.: C11H15NO4
Mol.Wt.: 225.2
Inv. Status: In Stock

Carbidopa BP Impurity C

Picture of Carbidopa BP Impurity C
CAT No: SZ-C075007
CAS No: 84488-77-7
Mol.F. : C11H16N2O4
Mol.Wt. : 240.3
Inv. Status: Custom Synthesis
SZ-C075007
CAS No:84488-77-7
Mol.F.: C11H16N2O4 
Mol.Wt.: 240.3
Inv. Status: Custom Synthesis

Carbidopa BP Impurity D

Picture of Carbidopa BP Impurity D
CAT No: SZ-C075008
CAS No: 934371-48-9
Mol.F. : C17H24N2O4
Mol.Wt. : 320.4
Inv. Status: In Stock
SZ-C075008
CAS No:934371-48-9
Mol.F.: C17H24N2O4
Mol.Wt.: 320.4
Inv. Status: In Stock

Carbidopa BP/EP Impurity E

Picture of Carbidopa BP/EP Impurity E
CAT No: SZ-C075009
CAS No: 52514-63-3
Mol.F. : C11H16N2O4
Mol.Wt. : 240.3
Inv. Status: Custom Synthesis
SZ-C075009
CAS No:52514-63-3
Mol.F.: C11H16N2O4 
Mol.Wt.: 240.3
Inv. Status: Custom Synthesis

Carbidopa BP/EP Impurity F (HCl)

Picture of Carbidopa BP/EP Impurity F (HCl)
CAT No: SZ-C075010
CAS No: NA
Mol.F. : C12H18N2O4 : HCl
Mol.Wt. : 254.3 : 36.5
Inv. Status: In Stock
Rel. CAS No : 1458640-32-8 (free base)
SZ-C075010
CAS No:NA
Mol.F.: C12H18N2O4 : HCl 
Mol.Wt.: 254.3 : 36.5
Inv. Status: In Stock
Rel. CAS No : 1458640-32-8 (free base)

Carbidopa BP/EP Impurity G

Picture of Carbidopa BP/EP Impurity G
CAT No: SZ-C075011
CAS No: 2503-44-8
Mol.F. : C9H10O3
Mol.Wt. : 166.2
Inv. Status: In Stock
SZ-C075011
CAS No:2503-44-8
Mol.F.: C9H10O3 
Mol.Wt.: 166.2
Inv. Status: In Stock

Carbidopa BP/EP Impurity H

Picture of Carbidopa BP/EP Impurity H
CAT No: SZ-C075012
CAS No: 1361017-74-4
Mol.F. : C11H16N2O4
Mol.Wt. : 240.3
Inv. Status: Custom Synthesis
SZ-C075012
CAS No:1361017-74-4
Mol.F.: C11H16N2O4
Mol.Wt.: 240.3
Inv. Status: Custom Synthesis

Carbidopa BP Impurity I

Picture of Carbidopa BP Impurity I
CAT No: SZ-C075013
CAS No: NA
Mol.F. : C10H13BrN2O4
Mol.Wt. : 305.1
Inv. Status: Custom Synthesis
SZ-C075013
CAS No:NA
Mol.F.: C10H13BrN2O4
Mol.Wt.: 305.1
Inv. Status: Custom Synthesis

Carbidopa BP/EP Impurity J

Picture of Carbidopa BP/EP Impurity J
CAT No: SZ-C075014
CAS No: 43197-33-7
Mol.F. : C10H13BrN2O4
Mol.Wt. : 305.1
Inv. Status: Custom Synthesis
SZ-C075014
CAS No:43197-33-7
Mol.F.: C10H13BrN2O4
Mol.Wt.: 305.1
Inv. Status: Custom Synthesis

Carbidopa Impurity 1

Picture of Carbidopa Impurity 1
CAT No: SZ-C075015
CAS No: 53832-94-3
Mol.F. : C10H12O4
Mol.Wt. : 196.2
Inv. Status: Custom Synthesis
SZ-C075015
CAS No:53832-94-3
Mol.F.: C10H12O4
Mol.Wt.: 196.2
Inv. Status: Custom Synthesis

(R)-Carbidopa

Picture of (R)-Carbidopa
CAT No: SZ-C075017
CAS No: 28875-92-5
Mol.F. : C10H14N2O4
Mol.Wt. : 226.2
Inv. Status: Custom Synthesis
SZ-C075017
CAS No:28875-92-5
Mol.F.: C10H14N2O4
Mol.Wt.: 226.2
Inv. Status: Custom Synthesis

Carbidopa USP Related Compound A

Picture of Carbidopa USP Related Compound A
CAT No: SZ-C075018
CAS No: 85933-19-3
Mol.F. : C11H16N2O4
Mol.Wt. : 240.3
Inv. Status: Custom Synthesis
SZ-C075018
CAS No:85933-19-3
Mol.F.: C11H16N2O4
Mol.Wt.: 240.3
Inv. Status: Custom Synthesis

Carbidopa Impurity 2

Picture of Carbidopa Impurity 2
CAT No: SZ-C075020
CAS No: 55175-59-2
Mol.F. : C10H14N2O3
Mol.Wt. : 210.2
Inv. Status: Custom Synthesis
SZ-C075020
CAS No:55175-59-2
Mol.F.: C10H14N2O3
Mol.Wt.: 210.2
Inv. Status: Custom Synthesis

Carbidopa Impurity 3

Picture of Carbidopa Impurity 3
CAT No: SZ-C075021
CAS No: NA
Mol.F. : C14H20N2O4
Mol.Wt. : 280.3
Inv. Status: Custom Synthesis
SZ-C075021
CAS No:NA
Mol.F.: C14H20N2O4
Mol.Wt.: 280.3
Inv. Status: Custom Synthesis

Carbidopa Impurity 4

Picture of Carbidopa Impurity 4
CAT No: SZ-C075022
CAS No: 54716-90-4
Mol.F. : C12H16N2O2
Mol.Wt. : 220.3
Inv. Status: Custom Synthesis
Rel. CAS No : 2544-13-0 (HCl salt) ; 105878-10-2 (HBr salt)
SZ-C075022
CAS No:54716-90-4
Mol.F.: C12H16N2O2
Mol.Wt.: 220.3
Inv. Status: Custom Synthesis
Rel. CAS No : 2544-13-0 (HCl salt) ; 105878-10-2 (HBr salt)

Stable Isotopes And Metabolites

Carbidopa D5

Picture of Carbidopa D5
CAT No: SZ-C075D01
CAS No: NA
Mol.F. : C10H9D5N2O4
Mol.Wt. : 231.3
Inv. Status: Custom Synthesis
SZ-C075D01
CAS No:NA
Mol.F.: C10H9D5N2O4
Mol.Wt.: 231.3
Inv. Status: Custom Synthesis

Carbidopa D3 Hydrate

Picture of Carbidopa D3 Hydrate
CAT No: SZ-C075D02
CAS No: NA
Mol.F. : C10H11D3N2O4 : HCl
Mol.Wt. : 229.3 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 38821-49-7 (Unlabeled)
SZ-C075D02
CAS No:NA
Mol.F.: C10H11D3N2O4 : HCl
Mol.Wt.: 229.3 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 38821-49-7 (Unlabeled)

Possible Nitroso Standards

N-Nitroso Carbidopa

Picture of N-Nitroso Carbidopa
CAT No: SZ-C075016
CAS No: NA
Mol.F. : C10H13N3O5
Mol.Wt. : 255.2
Inv. Status: Custom Synthesis
SZ-C075016
CAS No:NA
Mol.F.: C10H13N3O5
Mol.Wt.: 255.2
Inv. Status: Custom Synthesis