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ChemSpider
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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
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+e
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M+CH3CNH
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Found 5646 results
Search term:
MF = 'C_{21}H_{20}N_{4}O_{4}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
2074115
zoom
C
21
H
20
N
4
O
4
392.4079
29
35
0
0
2137882
zoom
C
21
H
20
N
4
O
4
392.4079
25
29
0
0
1089745
zoom
C
21
H
20
N
4
O
4
392.4079
23
27
0
0
2048464
zoom
C
21
H
20
N
4
O
4
392.4079
23
28
0
0
5262578
zoom
C
21
H
20
N
4
O
4
392.4079
23
34
0
0
3657221
zoom
C
21
H
20
N
4
O
4
392.4079
22
24
0
0
4345184
zoom
C
21
H
20
N
4
O
4
392.4079
21
22
0
0
4499862
zoom
C
21
H
20
N
4
O
4
392.4079
21
26
0
0
4594188
zoom
C
21
H
20
N
4
O
4
392.4079
21
23
0
0
4747085
zoom
C
21
H
20
N
4
O
4
392.4079
21
23
0
0
3657199
zoom
C
21
H
20
N
4
O
4
392.4079
21
24
0
0
3657200
zoom
C
21
H
20
N
4
O
4
392.4079
20
23
0
0
5259633
zoom
C
21
H
20
N
4
O
4
392.4079
20
24
0
0
855347
zoom
C
21
H
20
N
4
O
4
392.4079
20
24
0
0
919009
zoom
C
21
H
20
N
4
O
4
392.4079
20
22
0
0
2152318
zoom
C
21
H
20
N
4
O
4
392.4079
20
25
0
0
2203580
- 0/3 defined
zoom
C
21
H
20
N
4
O
4
392.4079
20
24
0
0
3277097
- 0/1 defined
zoom
C
21
H
20
N
4
O
4
392.4079
20
23
0
0
5978814
zoom
C
21
H
20
N
4
O
4
392.4079
20
21
0
0
5978813
zoom
C
21
H
20
N
4
O
4
392.4079
19
20
0
0
1
2
3
4
5
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