Carbidopa Impurities

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Impurity structure Parent Drug Name Name of Impurity Catalogue No. CAS No.
Budesonide for System Suitability CRS (Y0001148) Carbidopa

Carbidopa (1095506)

PVE00328 38821-49-7
Carbidopa 3,4 Dihydroxybenzaldehyde Carbidopa

Carbidopa 3,4 Dihydroxybenzaldehyde

VL420011 139-85-5
Carbidopa 6,7-dihydroxy-3-methylcinnoline Impurity Carbidopa

Carbidopa 6,7-dihydroxy-3-methylcinnoline Impurity

VE006871 1176784-51-2
Carbidopa EP Impurity A Carbidopa

Carbidopa EP Impurity A

VL420005 555-30-6
Carbidopa EP Impurity B Carbidopa

Carbidopa EP Impurity B

VL420003 18181-08-3
Carbidopa EP Impurity C (S)-Isomer Carbidopa

Carbidopa EP Impurity C (S)-Isomer

VE0013212 84488-77-7
Carbidopa EP Impurity E Carbidopa

Carbidopa EP Impurity E

VL420006 52514-63-3
Carbidopa EP Impurity F Carbidopa

Carbidopa EP Impurity F

VL420007 91908-71-3
Carbidopa EP Impurity F(HCl) Carbidopa

Carbidopa EP Impurity F(HCl)

VL420014 96115-88-7
Carbidopa EP Impurity G Carbidopa

Carbidopa EP Impurity G

VL420001 2503-44-8
Carbidopa EP Impurity H Carbidopa

Carbidopa EP Impurity H

VL420013 1361017-74-4
Carbidopa EP Impurity I Carbidopa

Carbidopa EP Impurity I

VE006052 1246819-09-9
Carbidopa EP Impurity J Carbidopa

Carbidopa EP Impurity J

VE006053 43197-33-7
Carbidopa Imine Ester Impurity Carbidopa

Carbidopa Imine Ester Impurity

VE0020534 1402053-59-1
Carbidopa Impurity 1 Carbidopa

Carbidopa Impurity 1

VL420009 53832-94-3
Budesonide for System Suitability CRS (Y0001148) Carbidopa

Carbidopa impurity mixture CRS (Y0001716)

PVE00358 N/A
Carbidopa Methyl Ester Racemate Carbidopa

Carbidopa Methyl Ester Racemate

VE007609 91431-01-5
Carbidopa Related Compound 1 Carbidopa

Carbidopa Related Compound 1

VE007610 2092269-25-3
Carbidopa Related Compound 10 Carbidopa

Carbidopa Related Compound 10

VE007611 28860-96-0
Carbidopa Related Compound 11 Carbidopa

Carbidopa Related Compound 11

VE007612 158190-23-9
Carbidopa Related Compound 2 Carbidopa

Carbidopa Related Compound 2

VE007613 28861-00-9
Carbidopa Related Compound 3 Carbidopa

Carbidopa Related Compound 3

VE007614 43197-06-4
Carbidopa Related Compound 5 Carbidopa

Carbidopa Related Compound 5

VE007615 312510-64-8
Carbidopa Related Compound 6 Carbidopa

Carbidopa Related Compound 6

VE007616 60632-40-8
Carbidopa Related Compound 7 Carbidopa

Carbidopa Related Compound 7

VE007617 302-53-4
Carbidopa Related Compound 8 Carbidopa

Carbidopa Related Compound 8

VE007618 28875-92-5
Carbidopa Related Compound A Carbidopa

Carbidopa Related Compound A

VL420010 85933-19-3
Carbidopa-D3 Carbidopa

Carbidopa-D3

DVE00300 1276732-89-8
L-Carbidopa-3', 4'-Diphosphate Carbidopa

L-Carbidopa-3', 4'-Diphosphate

VE007619 1907685-82-8
N-Cyclohexylidene Carbidopa Methyl Ester Carbidopa

N-Cyclohexylidene Carbidopa Methyl Ester

VL420004 934371-48-9
N-Nitroso Carbidopa Carbidopa

N-Nitroso Carbidopa

VE0010461 N/A