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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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M+CH3CNH
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M+.
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M+Na
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Found 4556 results
Search term:
MF = 'C_{20}H_{21}NO_{2}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
64045
zoom
C
20
H
21
NO
2
307.3862
67
105
14
1
149419
zoom
C
20
H
21
NO
2
307.3862
64
47
2
0
25991622
zoom
C
20
H
21
NO
2
307.3862
56
41
0
0
2118017
- 0/1 defined
zoom
C
20
H
21
NO
2
307.38624
52
44
0
0
2103633
- 0/4 defined
zoom
C
20
H
21
NO
2
307.38624
46
36
0
0
714750
zoom
C
20
H
21
NO
2
307.3862
45
26
0
0
2402724
- 0/1 defined
zoom
C
20
H
21
NO
2
307.3862
43
27
0
0
1811615
zoom
C
20
H
21
NO
2
307.3862
42
29
0
0
670679
zoom
C
20
H
21
NO
2
307.3862
33
23
0
0
582837
zoom
C
20
H
21
NO
2
307.3862
32
17
0
0
2157745
- 0/1 defined
zoom
C
20
H
21
NO
2
307.38624
30
20
0
0
2158197
- 0/1 defined
zoom
C
20
H
21
NO
2
307.38624
29
19
0
0
3456517
zoom
C
20
H
21
NO
2
307.38624
29
23
0
0
4947263
zoom
C
20
H
21
NO
2
307.3862
29
31
0
0
545394
zoom
C
20
H
21
NO
2
307.3862
28
18
0
0
2398129
zoom
C
20
H
21
NO
2
307.38624
28
19
0
0
583837
zoom
C
20
H
21
NO
2
307.3862
27
18
0
0
645540
zoom
C
20
H
21
NO
2
307.3862
27
18
0
0
524533
zoom
C
20
H
21
NO
2
307.3862
27
16
0
0
694127
zoom
C
20
H
21
NO
2
307.3862
27
15
0
0
1
2
3
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5
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