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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+.
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 148 results
Search term:
MF = 'C_{4}H_{5}NO_{2}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
10955
zoom
C
4
H
5
NO
2
99.088
150
511
879
1994
23167
zoom
C
4
H
5
NO
2
99.088
135
123
1
0
62545
zoom
C
4
H
5
NO
2
99.088
118
125
0
95
13867413
zoom
C
4
H
5
NO
2
99.088
112
1846
5
138
231083
zoom
C
4
H
5
NO
2
99.088
108
86
0
4
11229624
zoom
C
4
H
5
NO
2
99.088
92
56
0
0
11196574
zoom
C
4
H
5
NO
2
99.088
91
51
1
0
11659186
zoom
C
4
H
5
NO
2
99.088
89
62
0
0
476798
zoom
C
4
H
5
NO
2
99.088
84
64
4
31
11659338
zoom
C
4
H
5
NO
2
99.088
78
44
0
0
10714036
zoom
C
4
H
5
NO
2
99.088
77
49
0
0
479759
zoom
C
4
H
5
NO
2
99.088
69
61
1
1
14555553
zoom
C
4
H
5
NO
2
99.088
55
32
0
2
313258
- 0/1 defined
zoom
C
4
H
5
NO
2
99.088
52
37
0
0
12952341
zoom
C
4
H
5
NO
2
99.088
50
38
0
0
10537879
zoom
C
4
H
5
NO
2
99.088
48
49
0
0
13243
zoom
C
4
H
5
NO
2
99.088
43
34
0
3
26073
zoom
C
4
H
5
NO
2
99.088
40
34
0
2
13442931
zoom
C
4
H
5
NO
2
99.088
37
23
0
0
168011
zoom
C
4
H
5
NO
2
99.088
32
25
1
0
1
2
3
4
5
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