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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
+e
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Found 40 results
Search term:
MF = 'C_{21}H_{21}F_{4}NO_{4}'
1
2
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
9886317
- 1/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
10
9
0
0
67898030
- 0/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
5
5
0
0
9858064
- 1/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
5
4
0
0
31859501
- 0/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
4
4
0
0
61749073
- 0/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
3
3
0
0
61749122
- 0/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
3
3
0
0
61749260
- 0/2 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
3
3
0
0
61749274
- 0/2 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
3
3
0
0
22737196
- 0/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
3
2
0
0
23265674
- 1/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
3
3
0
0
23265711
- 0/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
3
3
0
0
23265712
- 0/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
3
3
0
0
23265716
- 0/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
3
3
0
0
23284772
- 0/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
3
3
0
0
24690068
- 0/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
3
3
0
0
24691867
- 0/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
3
3
0
0
114678652
- 0/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
3
3
0
0
76770876
- 2/2 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
2
2
0
0
9713954
- 1/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
2
1
0
0
9742868
- 1/1 defined
zoom
C
21
H
21
F
4
NO
4
427.3894
2
1
0
0
1
2
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