Levetiracetam Impurities

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Impurity structure Parent Drug Name Name of Impurity Catalogue No. CAS No.
Levetiracetam (R) Carboxylic Acid Levetiracetam

Levetiracetam (R) Carboxylic Acid

VE006148 103833-72-3
Levetiracetam Alkene Impurity Levetiracetam

Levetiracetam Alkene Impurity

VE006215 N/A
Budesonide for System Suitability CRS (Y0001148) Levetiracetam

Levetiracetam CRS (Y0001253)

PVE00181 102767-28-2
Levetiracetam EP Impurity A Levetiracetam

Levetiracetam EP Impurity A

VL1280003 67118-31-4
Levetiracetam EP Impurity B Levetiracetam

Levetiracetam EP Impurity B

VL1280008 358629-47-7
Levetiracetam EP Impurity C Levetiracetam

Levetiracetam EP Impurity C

VL1280009 142-08-05
Levetiracetam EP Impurity D Levetiracetam

Levetiracetam EP Impurity D

VL1280001 103765-01-1
Levetiracetam Impurity 18 Levetiracetam

Levetiracetam Impurity 18

VE0015933 79194-54-0
Levetiracetam Impurity 21 Levetiracetam

Levetiracetam Impurity 21

VE0015934 1847568-87-9
Levetiracetam Impurity 6 Levetiracetam

Levetiracetam Impurity 6

VE0015931 1844123-52-9
Levetiracetam Impurity 7 Levetiracetam

Levetiracetam Impurity 7

VE0015932 1867585-44-1
Budesonide for System Suitability CRS (Y0001148) Levetiracetam

Levetiracetam impurity A CRS (Y0001254)

PVE00349 N/A
Levetiracetam impurity D CRS (Y0001257) Levetiracetam

Levetiracetam impurity D CRS (Y0001257)

PVE00348 103765-01-1
Levetiracetam Impurity E Levetiracetam

Levetiracetam Impurity E

VL1280015 3886-69-9
Budesonide for System Suitability CRS (Y0001148) Levetiracetam

Levetiracetam Impurity G CRS (Y0001948)

PVE00286 7682-20-4
Levetiracetam Racemate Levetiracetam

Levetiracetam Racemate

VE008607 33996-58-6
Levetiracetam Related Compound A Levetiracetam

Levetiracetam Related Compound A

VL1280012 102767-31-7
Levetiracetam Related Compound B Levetiracetam

Levetiracetam Related Compound B

VL1280013 7682-20-4
Levetiracetam Related Compound B (Free Base) Levetiracetam

Levetiracetam Related Compound B (Free Base)

VE006674 7324-11-0
Levetiracetam Working Standard Levetiracetam

Levetiracetam Working Standard

VL1280010 102767-28-2
Levetiracetam-D6 Levetiracetam

Levetiracetam-D6

DVE00750 1133229-30-7
levetiracetum (S) Carboxylic acid Levetiracetam

levetiracetum (S) Carboxylic acid

VL1280002 102849-49-0
rac-Levetiracetam-D6 Levetiracetam

rac-Levetiracetam-D6

DVE00751 1398044-39-7
(S)-N-(1-Amino-1-oxobutan-2-yl)-4-hydroxybutanamide Levetiracetam

(S)-N-(1-Amino-1-oxobutan-2-yl)-4-hydroxybutanamide

VE0010933 1868118-63-1
4-[2-Hydroxy-3-(2-methoxyphenoxy)propyl]-1-piperazineacetic Acid Levetiracetam

4-[2-Hydroxy-3-(2-methoxyphenoxy)propyl]-1-piperazineacetic Acid

VE009477 172430-48-7