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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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Average Mass:
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M+CH3CNH
M+CH3OH2
M+.
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M+Na
M+NH4
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M-H
M+acetate
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+e
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M+CH3CNH
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M+Na
M+NH4
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M-.
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Found 50 results
Search term:
MF = 'C_{21}H_{18}F_{4}N_{2}O_{4}'
1
2
3
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
2192133
- 0/3 defined
zoom
C
21
H
18
F
4
N
2
O
4
438.3722328
23
12
0
0
12541630
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
11
7
0
0
30021377
- 0/1 defined
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
9
7
0
0
17260748
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
4
4
0
0
22051391
- 0/1 defined
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
3
2
0
0
22923361
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
3
1
0
0
22924423
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
3
1
0
0
30838341
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
3
3
0
0
32288840
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
3
3
0
0
32288841
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
3
3
0
0
35033645
- 0/2 defined
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
3
3
0
0
58913658
- 0/1 defined
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
3
3
0
0
62406852
- 3/3 defined
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
2
2
0
0
67479213
- 0/1 defined
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
2
1
0
0
33173954
- 0/1 defined
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
2
2
0
0
28517865
- 2/2 defined
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
2
2
0
0
8472332
- 0/1 defined
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
2
1
0
0
22914576
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
2
1
0
0
34330061
- 0/1 defined
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
2
2
0
0
33815436
zoom
C
21
H
18
F
4
N
2
O
4
438.3722
1
1
0
0
1
2
3
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