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QL201555
Letrozole Impurity 55
Molecular Formula: C17H13N5O
Molecular Weight: 303.32
CAS No.: 2500927-63-7
QL201556
Letrozole Impurity 56
Molecular Formula: C10H10N4O
Molecular Weight: 202.21
CAS No.: 1461654-89-6
QL201557
Letrozole Impurity 57
Molecular Formula: C10H9N3O2
Molecular Weight: 203.2
CAS No.: 1250126-45-4
QL201558
Letrozole Nitroso Impurity 1
Molecular Formula: C4H4N2O3
Molecular Weight: 128.09
CAS No.: NA
QL201800
Letermovir
Molecular Formula: C29H28F4N4O4
Molecular Weight: 572.56
CAS No.: 917389-32-3
QL201801
Letermovir Impurity 1
Molecular Formula: C8H8F3NO
Molecular Weight: 191.15
CAS No.: 349-65-5
QL201802
Letermovir Impurity 2
Molecular Formula: C29H28F4N4O4
Molecular Weight: 572.56
CAS No.: 917389-37-8
QL201803
Letermovir Impurity 3
Molecular Formula: C30H30F4N4O4
Molecular Weight: 586.59
CAS No.: 917389-34-5;917389-35-6(Di-p-toluoyl-L-tartaric acid)
QL201804
Letermovir Impurity 4
Molecular Formula: C40H43F3N6O5
Molecular Weight: 744.82
CAS No.: NA
QL201805
Letermovir Impurity 5
Molecular Formula: C30H30F4N4O4
Molecular Weight: 586.59
CAS No.: 917389-29-8;917389-30-1(Di-p-toluoyl-D-tartaric acid);2241754-97-0(Di-p-toluoyl-D-tartaric acid
QL201806
Letermovir Impurity 6
Molecular Formula: C21H18F2N2O5
Molecular Weight: 416.38
CAS No.: NA
QL201807
Letermovir Impurity 7
Molecular Formula: C19H16F4N2O4
Molecular Weight: 412.34
CAS No.: NA
QL201808
Letermovir Impurity 8
Molecular Formula: C32H32F2N4O5
Molecular Weight: 590.63
CAS No.: NA
QL201809
Letermovir Impurity 9
Molecular Formula: C29H28F4N4O4
Molecular Weight: 572.56
CAS No.: NA
QL201810
Letermovir Impurity 10
Molecular Formula: C29H28F4N4O4
Molecular Weight: 572.56
CAS No.: NA
QL201811
Letermovir Impurity 11
Molecular Formula: C29H28F4N4O4
Molecular Weight: 572.56
CAS No.: NA
QL201812
Letermovir Impurity 12
Molecular Formula: C22H25FN4O3
Molecular Weight: 412.47
CAS No.: NA
QL201813
Letermovir Impurity 13
Molecular Formula: C18H17FN2O4
Molecular Weight: 344.34
CAS No.: NA
QL201814
Letermovir Impurity 14
Molecular Formula: C19H16F4N2O4
Molecular Weight: 412.34
CAS No.: 917389-21-0
QL201815
Letermovir Impurity 15
Molecular Formula: C29H28F4N4O5
Molecular Weight: 588.56
CAS No.: 2991059-71-1
QL201816
Letermovir Impurity 16
Molecular Formula: C40H42F4N6O4
Molecular Weight: 746.81
CAS No.: NA
QL201817
Letermovir Impurity 17
Molecular Formula: C15H10F2N2O
Molecular Weight: 272.25
CAS No.: NA
QL201818
Letermovir Impurity 18
Molecular Formula: C13H9BrFNO2
Molecular Weight: 310.12
CAS No.: NA
QL201819
Letermovir Impurity 19
Molecular Formula: C20H18F4N2O4
Molecular Weight: 426.37
CAS No.: NA
QL201820
Letermovir Impurity 20
Molecular Formula: C15H11BrF4N2O2
Molecular Weight: 407.16
CAS No.: 917389-23-2
QL201821
Letermovir Impurity 21
Molecular Formula: C20H18F4N2O4
Molecular Weight: 426.37
CAS No.: NA
QL201822
Letermovir Impurity 22
Molecular Formula: C23H22F2N2O5
Molecular Weight: 444.43
CAS No.: NA
QL201823
Letermovir Impurity 23
Molecular Formula: C20H16F4N2O3
Molecular Weight: 408.35
CAS No.: NA
QL201824
Letermovir Impurity 24
Molecular Formula: C31H32F4N4O4
Molecular Weight: 600.61
CAS No.: NA
QL201825
Letermovir Impurity 25
Molecular Formula: C23H26FN3O4
Molecular Weight: 427.48
CAS No.: NA
