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BRIVARACETAM

B-105004

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Catalogue Number:	B-105004
Compound Name:	Brivaracetam EP Impurity B (Brivaracetam USP Related Compound B)
Synonyms:	(R)-2-((S)-2-oxo-4-propylpyrrolidin-1-yl)butanamide
CAS#:	357336-99-3
Alternate CAS#:
Molecular Formula:	C₁₁H₂₀N₂O₂
Molecular Weight:	212.29

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M.W. 237.14

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M.W. 258.36 36.46

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M.W. 213.28

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Brivaracetam Impurity 11

C₁₂H₂₄N₂O₃

M.W. 244.34

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Brivaracetam Impurity 13

C₁₁H₂₀N₂O₃

M.W. 228.147

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M.W. 228.147

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M.W. 202.29

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M.W. 128.17

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Brivaracetam Impurity 20

CAS No. 2432911-38-9

C₉H₁₇BrO₂

M.W. 237.14

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Brivaracetam Impurity 21

CAS No. 357334-83-9

C₁₁H₂₀N₂O₂

M.W. 212.29

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Brivaracetam Impurity 22 HCl

C₁₁H₂₂N₂O₃. HCl

M.W. 230.31 36.46

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Brivaracetam Impurity 23

C₁₄H₂₈N₂O₃

M.W. 272.39

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CAS No. 2101641-90-9

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M.W. 164.63

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Brivaracetam Impurity 25

C₉H₁₇ClO₂

M.W. 192.68

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M.W. 230.31 36.46

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Brivaracetam Impurity 27

C₁₁H₁₇NO₄

M.W. 227.26

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Brivaracetam Impurity 28

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M.W. 226.28

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M.W. 211.26

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M.W. 127.19

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Brivaracetam Impurity 31

CAS No. 2252417-17-5

C₁₁H₂₂N₂O₃

M.W. 230.31

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Brivaracetam Impurity 32 HCl

C₂₄H₄₆N₄O₅. HCl

M.W. 470.66 36.46

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Brivaracetam Impurity 33

CAS No. 930123-37-8

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M.W. 127.19

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M.W. 227.30

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M.W. 213.28

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M.W. 254.33

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M.W. 209.08

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Brivaracetam Impurity 41

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M.W. 293.21

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Brivaracetam Impurity 42

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M.W. 293.21

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M.W. 293.21

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M.W. 174.24

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Brivaracetam Impurity 45

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M.W. 246.42

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M.W. 174.24

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M.W. 210.28

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Brivaracetam Impurity 48

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M.W. 228.29

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Brivaracetam

Brivaracetam Impurity 49

C₁₂H₁₉NO₅

M.W. 257.29

B-105056

Brivaracetam

Brivaracetam Impurity 50

C₁₁H₂₀N₂O₃

M.W. 228.29

B-105057

Brivaracetam

Brivaracetam Impurity 51

C₁₂H₁₉NO₅

M.W. 257.29

B-105058

Brivaracetam

Brivaracetam Impurity 52

C₂₂H₄₂N₂O₅

M.W. 414.59

B-105059

Brivaracetam

Brivaracetam Impurity 53

C₁₁H₂₀N₂O₃

M.W. 228.29

B-105060

Brivaracetam

Brivaracetam Impurity 54

C₁₁H₂₀N₂O₃

M.W. 228.29

B-105061

Brivaracetam

Brivaracetam Impurity 55

C₁₁H₁₈N₂O₃

M.W. 226.28

B-105062

Brivaracetam

Brivaracetam Impurity 56

C₁₁H₁₉NO₄

M.W. 229.28

B-105063

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Brivaracetam Impurity 57

C₁₁H₁₉NO₄

M.W. 229.28

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M.W. 219.34

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Brivaracetam Impurity 58

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M.W. 226.32

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Brivaracetam Impurity 59

C₁₁H₁₈O₃

M.W. 198.26

B-105067

Brivaracetam

Brivaracetam Impurity 60

C₈H₁₂O₃

M.W. 156.18

B-105068

Brivaracetam

Brivaracetam Impurity 61

C₈H₁₂O₃

M.W. 156.18

B-105069

Brivaracetam

Brivaracetam Impurity 62 HCl

CAS No. 103765-03-3

C₄H₁₀N₂O. HCl

M.W. 102.14 36.46

B-105070

Brivaracetam

Brivaracetam Impurity 63 Disodium Salt

C₁₁H₁₉NO₄. 2 Na

M.W. 229.28 2*22.99

B-105071

Brivaracetam

Brivaracetam Impurity 64

C₁₂H₁₉NO₃

M.W. 225.29

B-105072

Brivaracetam

Brivaracetam Impurity 65

C₁₂H₁₉NO₃

M.W. 225.29

B-105073

Brivaracetam

Brivaracetam Lactose Adduct

C₂₃H₄₀N₂O₁₂

M.W. 536.58

B-105074

Brivaracetam

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C₁₁H₁₉N₃O₃

M.W. 241.29

B-105075

Brivaracetam

N-Nitroso Brivaracetam Impurity 63

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M.W. 260.29

B-105076

Brivaracetam

N-Nitroso Brivaracetam Impurity 11

C₁₂H₂₃N₃O₄

M.W. 273.33

B-105077

Brivaracetam

N-Nitroso Brivaracetam Impurity 22

C₁₁H₂₁N₃O₄

M.W. 259.31