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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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M+CH3CNH
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Found 161 results
Search term:
MF = 'C_{5}H_{4}N_{2}O_{3}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
198882
zoom
C
5
H
4
N
2
O
3
140.0969
177
140
0
22
25180
zoom
C
5
H
4
N
2
O
3
140.0969
168
124
1
3
71770
zoom
C
5
H
4
N
2
O
3
140.0969
165
117
5
13
21369
zoom
C
5
H
4
N
2
O
3
140.0969
157
137
4
18
13662
zoom
C
5
H
4
N
2
O
3
140.0969
152
171
46
120
270513
zoom
C
5
H
4
N
2
O
3
140.0969
142
95
0
2
142126
zoom
C
5
H
4
N
2
O
3
140.0969
141
103
0
0
209397
zoom
C
5
H
4
N
2
O
3
140.0969
141
85
0
1
491983
zoom
C
5
H
4
N
2
O
3
140.0969
136
78
1
4
269368
zoom
C
5
H
4
N
2
O
3
140.0969
133
188
0
0
2043555
zoom
C
5
H
4
N
2
O
3
140.0969
101
52
0
0
11210139
zoom
C
5
H
4
N
2
O
3
140.0969
100
58
0
2
22547520
zoom
C
5
H
4
N
2
O
3
140.0969
94
53
0
0
2043521
zoom
C
5
H
4
N
2
O
3
140.0969
92
53
0
0
2043609
zoom
C
5
H
4
N
2
O
3
140.09686
88
46
0
0
216218
zoom
C
5
H
4
N
2
O
3
140.0969
87
56
0
0
2043603
zoom
C
5
H
4
N
2
O
3
140.09686
86
49
0
0
8686335
zoom
C
5
H
4
N
2
O
3
140.0969
85
56
0
0
10757729
zoom
C
5
H
4
N
2
O
3
140.0969
84
48
0
0
64113
zoom
C
5
H
4
N
2
O
3
140.0969
78
57
0
0
1
2
3
4
5
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