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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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M+CH3CNH
M+CH3OH2
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M+Na
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M-H
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+e
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Found 52 results
Search term:
MF = 'C_{21}H_{13}N_{5}O_{4}'
1
2
3
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
1032109
zoom
C
21
H
13
N
5
O
4
399.359
16
10
0
0
2094558
zoom
C
21
H
13
N
5
O
4
399.35902
15
10
0
0
4037271
zoom
C
21
H
13
N
5
O
4
399.35902
13
8
0
0
9713345
zoom
C
21
H
13
N
5
O
4
399.359
11
7
0
0
18456790
zoom
C
21
H
13
N
5
O
4
399.359
10
8
0
0
18456799
zoom
C
21
H
13
N
5
O
4
399.359
10
8
0
0
29992819
zoom
C
21
H
13
N
5
O
4
399.359
7
6
0
0
32424
zoom
C
21
H
13
N
5
O
4
399.359
6
5
0
0
28632355
zoom
C
21
H
13
N
5
O
4
399.359
5
2
0
0
28632558
zoom
C
21
H
13
N
5
O
4
399.359
5
2
0
0
28632559
zoom
C
21
H
13
N
5
O
4
399.359
5
2
0
0
28632839
zoom
C
21
H
13
N
5
O
4
399.359
5
2
0
0
28632877
zoom
C
21
H
13
N
5
O
4
399.359
5
2
0
0
28632893
zoom
C
21
H
13
N
5
O
4
399.359
5
2
0
0
28632894
zoom
C
21
H
13
N
5
O
4
399.359
5
2
0
0
28632895
zoom
C
21
H
13
N
5
O
4
399.359
5
2
0
0
28633067
zoom
C
21
H
13
N
5
O
4
399.359
5
2
0
0
28633105
zoom
C
21
H
13
N
5
O
4
399.359
5
2
0
0
31672413
zoom
C
21
H
13
N
5
O
4
399.359
4
4
0
0
32425
zoom
C
21
H
13
N
5
O
4
399.359
3
2
0
0
1
2
3
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