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ChemSpider
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Molecular Formula:
Define range intervals using parentheses.
E.g. C7H(10-14)O(0-4)
Molecular Weight:
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(example: 123 ± 1)
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Nominal Mass:
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+H+
+2H+
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Average Mass:
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M+CH3CNH
M+CH3OH2
M+.
M+K
M+Na
M+NH4
M+H
M-H
M+acetate
M-.
M+Cl
-e
+e
min/max
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Monoisotopic Mass:
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M+CH3CNH
M+CH3OH2
M+.
M+K
M+Na
M+NH4
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M+acetate
M-.
M+Cl
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Found 513 results
Search term:
MF = 'C_{20}H_{19}F_{2}N_{5}O_{2}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
58136671
- 2/4 defined
zoom
C
20
H
19
F
2
N
5
O
2
399.394
27
28
0
0
861486
zoom
C
20
H
19
F
2
N
5
O
2
399.394
20
12
0
0
30678217
zoom
C
20
H
19
F
2
N
5
O
2
399.394
18
17
0
0
27320334
zoom
C
20
H
19
F
2
N
5
O
2
399.394
13
9
0
0
27328847
zoom
C
20
H
19
F
2
N
5
O
2
399.394
13
10
0
0
30676772
zoom
C
20
H
19
F
2
N
5
O
2
399.394
12
10
0
0
21086973
zoom
C
20
H
19
F
2
N
5
O
2
399.394
10
9
0
0
26288768
zoom
C
20
H
19
F
2
N
5
O
2
399.394
10
9
0
0
27312473
zoom
C
20
H
19
F
2
N
5
O
2
399.394
9
8
0
0
27312544
zoom
C
20
H
19
F
2
N
5
O
2
399.394
9
8
0
0
27312689
zoom
C
20
H
19
F
2
N
5
O
2
399.394
9
8
0
0
4783185
- 0/1 defined
zoom
C
20
H
19
F
2
N
5
O
2
399.394
9
8
0
0
30749399
- 0/1 defined
zoom
C
20
H
19
F
2
N
5
O
2
399.394
9
8
0
0
32692673
- 0/1 defined
zoom
C
20
H
19
F
2
N
5
O
2
399.394
9
7
0
0
27312752
zoom
C
20
H
19
F
2
N
5
O
2
399.394
8
7
0
0
27312791
zoom
C
20
H
19
F
2
N
5
O
2
399.394
8
7
0
0
27312910
zoom
C
20
H
19
F
2
N
5
O
2
399.394
8
7
0
0
27312972
zoom
C
20
H
19
F
2
N
5
O
2
399.394
8
7
0
0
27313156
zoom
C
20
H
19
F
2
N
5
O
2
399.394
8
7
0
0
27313161
zoom
C
20
H
19
F
2
N
5
O
2
399.394
8
7
0
0
1
2
3
4
5
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