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ChemSpider
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Structure
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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 165 results
Search term:
MF = 'C_{19}H_{20}F_{2}N_{4}O_{4}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
17347490
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
55
66
0
0
22399588
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
9
6
0
0
22442084
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
8
7
0
0
22715484
- 0/1 defined
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
7
6
0
0
29142342
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
7
6
0
0
57575046
- 0/1 defined
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
7
5
0
0
30727785
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
6
8
0
0
71285174
- 0/1 defined
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
5
5
0
0
31762842
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
4
4
0
0
31762891
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
4
4
0
0
31762912
- 0/1 defined
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
4
4
0
0
6673449
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
4
3
0
0
6846290
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
4
3
0
0
8516732
- 0/1 defined
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
4
3
0
0
8724694
- 0/1 defined
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
4
3
0
0
6887092
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
3
2
0
0
23220891
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
3
3
0
0
25052113
- 2/2 defined
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
3
3
0
0
5822304
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
3
2
0
0
58540515
- 0/2 defined
zoom
C
19
H
20
F
2
N
4
O
4
406.3833
3
3
0
0
1
2
3
4
5
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