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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:
to
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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+.
M+K
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
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M+.
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M+Na
M+NH4
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M-.
M+Cl
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Found 82 results
Search term:
MF = 'C_{4}H_{5}N_{5}O'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
227992
zoom
C
4
H
5
N
5
O
139.1154
28
26
0
0
19993866
zoom
C
4
H
5
N
5
O
139.1154
14
11
0
0
30995133
zoom
C
4
H
5
N
5
O
139.1154
13
8
0
0
235464
zoom
C
4
H
5
N
5
O
139.1154
12
9
0
0
24190518
zoom
C
4
H
5
N
5
O
139.1154
11
8
0
0
23978416
zoom
C
4
H
5
N
5
O
139.1154
9
6
0
0
15673170
zoom
C
4
H
5
N
5
O
139.1154
8
4
0
0
4604768
zoom
C
4
H
5
N
5
O
139.1154
7
6
0
0
32979278
zoom
C
4
H
5
N
5
O
139.1154
7
8
0
0
19970770
zoom
C
4
H
5
N
5
O
139.1154
6
7
0
0
11297164
zoom
C
4
H
5
N
5
O
139.1154
6
8
1
10
452415
- 0/2 defined
zoom
C
4
H
5
N
5
O
139.1154
5
5
0
0
32975297
zoom
C
4
H
5
N
5
O
139.1154
5
4
0
0
38511768
zoom
C
4
H
5
N
5
O
139.1154
4
3
0
0
8009698
zoom
C
4
H
5
N
5
O
139.1154
4
4
0
0
14226094
zoom
C
4
H
5
N
5
O
139.1154
4
5
5
1
32979354
zoom
C
4
H
5
N
5
O
139.1154
4
3
0
0
38511762
zoom
C
4
H
5
N
5
O
139.1154
4
3
0
0
38511767
zoom
C
4
H
5
N
5
O
139.1154
3
2
0
0
32973313
zoom
C
4
H
5
N
5
O
139.1154
3
3
0
0
1
2
3
4
5
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