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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+.
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M+Na
M+NH4
M+H
M-H
M+acetate
M-.
M+Cl
-e
+e
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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-.
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Found 289 results
Search term:
MF = 'C_{21}H_{14}N_{2}O_{2}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
546968
zoom
C
21
H
14
N
2
O
2
326.3481
91
60
0
3
2052123
zoom
C
21
H
14
N
2
O
2
326.34806
40
29
0
2
600651
zoom
C
21
H
14
N
2
O
2
326.3481
30
17
0
0
546957
zoom
C
21
H
14
N
2
O
2
326.3481
27
21
0
0
698580
zoom
C
21
H
14
N
2
O
2
326.3481
27
18
0
0
678636
zoom
C
21
H
14
N
2
O
2
326.3481
25
15
0
0
652789
zoom
C
21
H
14
N
2
O
2
326.3481
24
16
0
0
723091
zoom
C
21
H
14
N
2
O
2
326.3481
24
13
0
0
533237
zoom
C
21
H
14
N
2
O
2
326.3481
23
16
0
0
71046606
zoom
C
21
H
14
N
2
O
2
326.3481
22
22
0
0
723270
zoom
C
21
H
14
N
2
O
2
326.3481
21
13
0
0
698554
zoom
C
21
H
14
N
2
O
2
326.3481
21
13
0
0
823355
zoom
C
21
H
14
N
2
O
2
326.3481
20
13
0
0
678638
zoom
C
21
H
14
N
2
O
2
326.3481
20
11
0
0
5672394
zoom
C
21
H
14
N
2
O
2
326.3481
20
11
0
0
829913
zoom
C
21
H
14
N
2
O
2
326.3481
19
12
0
0
4508968
zoom
C
21
H
14
N
2
O
2
326.3481
19
15
0
0
4263135
zoom
C
21
H
14
N
2
O
2
326.34806
18
11
0
0
670986
zoom
C
21
H
14
N
2
O
2
326.3481
18
12
0
0
570050
zoom
C
21
H
14
N
2
O
2
326.3481
18
11
0
0
1
2
3
4
5
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