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Drug Impurity Standard
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Letermovir
Letermovir Impurity 65
Product No.:
L043065
CAS NO.:
Formula:
C
30
H
30
F
4
N
4
O
4
Weight:
586.58
Letermovir Impurity 65(Di-p-toluoyl-L-tartaric acid)
Product No.:
L043065A
CAS NO.:
Formula:
C
30
H
30
F
4
N
4
O
4
.
C
20
H
18
O
8
Weight:
586.58386.35
Letermovir Impurity 66
Product No.:
L043066
CAS NO.:
Formula:
C
30
H
30
F
4
N
4
O
4
Weight:
586.58
Letermovir Impurity 66(Di-p-toluoyl-L-tartaric acid)
Product No.:
L043066A
CAS NO.:
Formula:
C
30
H
30
F
4
N
4
O
4
.
C
20
H
18
O
8
Weight:
586.58386.35
Letermovir Impurity 67
Product No.:
L043067
CAS NO.:
Formula:
C
31
H
32
F
4
N
4
O
4
Weight:
600.60
Letermovir Impurity 67(Di-p-toluoyl-L-tartaric acid)
Product No.:
L043067A
CAS NO.:
Formula:
C
31
H
32
F
4
N
4
O
4
.
C
20
H
18
O
8
Weight:
600.60 386.35
Letermovir Impurity 68
Product No.:
L043068
CAS NO.:
Formula:
C
29
H
28
F
4
N
4
O
4
Weight:
572.55
Letermovir Impurity 68(Di-p-toluoyl-L-tartaric acid)
Product No.:
L043068A
CAS NO.:
Formula:
C
29
H
28
F
4
N
4
O
4
.
C
20
H
18
O
8
Weight:
572.55 386.35
Letermovir Impurity 69(Di-p-toluoyl-L-tartaric acid)
Product No.:
L043069A
CAS NO.:
Formula:
C
31
H
30
F
2
N
4
O
5
.
C
20
H
18
O
8
Weight:
576.59 386.35
Letermovir Impurity 74
Product No.:
L043074
CAS NO.:
923785-19-7
Formula:
C
18
H
20
N
2
O
3
Weight:
312.36
Letermovir Impurity 75
Product No.:
L043075
CAS NO.:
Formula:
C
29
H
28
F
4
N
4
O
4
Weight:
572.55
Letermovir Impurity 76
Product No.:
L043076
CAS NO.:
Formula:
C
26
H
25
BrF
4
N
4
O
2
Weight:
581.40
Letermovir Impurity 77(Salicylate)
Product No.:
L043077A
CAS NO.:
Formula:
C
30
H
30
F
4
N
4
O
4
.
C
7
H
6
O
3
Weight:
586.58 138.12
Letermovir Impurity 78(Salicylate)
Product No.:
L043078A
CAS NO.:
Formula:
C
30
H
30
F
4
N
4
O
4
.
C
7
H
6
O
3
Weight:
586.58 138.12
Letermovir Impurity 79
Product No.:
L043079
CAS NO.:
Formula:
C
30
H
30
F
4
N
4
O
4
Weight:
586.58
Page 2 / Total 2
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