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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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-2H+
-H+
+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
+/-
Monoisotopic 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
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Found 118 results
Search term:
MF = 'C_{19}H_{20}F_{4}N_{2}O_{3}'
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2
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
22532683
- 0/1 defined
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
9
6
0
0
22550227
- 0/1 defined
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
9
7
0
0
3660155
- 0/2 defined
zoom
C
19
H
20
F
4
N
2
O
3
400.3673128
7
5
0
0
30211171
- 0/2 defined
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
7
6
0
0
4814502
- 0/2 defined
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
6
3
0
0
35323831
- 0/2 defined
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
6
6
0
0
31821915
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
4
4
0
0
31876159
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
4
4
0
0
31911063
- 0/2 defined
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
4
4
0
0
31999067
- 0/1 defined
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
4
4
0
0
5787156
- 0/4 defined
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
4
2
0
0
31597461
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
4
4
0
0
31606260
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
4
3
0
0
31738037
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
3
3
0
0
31802664
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
3
3
0
0
31818219
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
3
3
0
0
30065164
- 0/2 defined
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
3
1
0
0
31845867
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
3
2
0
0
69724307
- 0/1 defined
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
3
3
0
0
113558842
- 0/1 defined
zoom
C
19
H
20
F
4
N
2
O
3
400.3673
3
3
0
0
1
2
3
4
5
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