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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
±
(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
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M+acetate
M-.
M+Cl
-e
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Found 144 results
Search term:
MF = 'C_{5}H_{4}N_{2}O_{2}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
1018
zoom
C
5
H
4
N
2
O
2
124.0975
194
357
164
93
148073
zoom
C
5
H
4
N
2
O
2
124.0975
165
98
5
41
70716
zoom
C
5
H
4
N
2
O
2
124.0975
156
92
12
41
10465168
zoom
C
5
H
4
N
2
O
2
124.0975
146
97
0
31
2041777
zoom
C
5
H
4
N
2
O
2
124.09746
140
84
0
14
236847
zoom
C
5
H
4
N
2
O
2
124.0975
133
88
5
12
121289
zoom
C
5
H
4
N
2
O
2
124.0975
98
83
29
247
63899
zoom
C
5
H
4
N
2
O
2
124.0975
85
95
56
245
25139
zoom
C
5
H
4
N
2
O
2
124.0975
72
78
3
204
21402858
zoom
C
5
H
4
N
2
O
2
124.0975
63
49
0
0
23940688
zoom
C
5
H
4
N
2
O
2
124.0975
45
27
0
0
207289
zoom
C
5
H
4
N
2
O
2
124.0975
42
32
0
0
215213
zoom
C
5
H
4
N
2
O
2
124.0975
39
32
0
0
23978343
zoom
C
5
H
4
N
2
O
2
124.0975
39
33
0
0
14193100
zoom
C
5
H
4
N
2
O
2
124.0975
26
19
0
0
14399032
zoom
C
5
H
4
N
2
O
2
124.0975
22
18
0
0
11452870
zoom
C
5
H
4
N
2
O
2
124.0975
21
14
0
0
28190692
zoom
C
5
H
4
N
2
O
2
124.0975
16
11
0
0
32978120
zoom
C
5
H
4
N
2
O
2
124.0975
16
13
0
0
146008
zoom
C
5
H
4
N
2
O
2
124.0975
16
13
0
7
1
2
3
4
5
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