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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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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
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+e
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M+CH3CNH
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Found 6763 results
Search term:
MF = 'C_{20}H_{21}NO_{5}'
1
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5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
4874
zoom
C
20
H
21
NO
5
355.3844
71
73
0
0
9957885
- 2/2 defined
zoom
C
20
H
21
NO
5
355.3844
61
36
0
0
5373970
- 2/2 defined
zoom
C
20
H
21
NO
5
355.3844
52
40
0
0
24609029
- 2/2 defined
zoom
C
20
H
21
NO
5
355.3844
50
27
0
0
29312292
- 1/1 defined
zoom
C
20
H
21
NO
5
355.3844
47
38
0
0
242135
- 0/1 defined
zoom
C
20
H
21
NO
5
355.3844
46
44
0
0
29312289
- 1/1 defined
zoom
C
20
H
21
NO
5
355.3844
42
29
0
0
30208977
zoom
C
20
H
21
NO
5
355.3844
39
40
0
0
26519615
- 1/1 defined
zoom
C
20
H
21
NO
5
355.3844
37
30
0
0
2044524
- 0/1 defined
zoom
C
20
H
21
NO
5
355.38444
36
32
0
0
2121560
- 0/1 defined
zoom
C
20
H
21
NO
5
355.38444
31
20
0
0
898363
zoom
C
20
H
21
NO
5
355.3844
29
25
0
0
1070552
zoom
C
20
H
21
NO
5
355.3844
28
23
0
0
874116
zoom
C
20
H
21
NO
5
355.3844
28
19
0
0
2123934
- 0/1 defined
zoom
C
20
H
21
NO
5
355.38444
28
19
0
0
2160487
- 0/1 defined
zoom
C
20
H
21
NO
5
355.38444
27
19
0
0
3087058
- 0/2 defined
zoom
C
20
H
21
NO
5
355.3844
27
16
0
0
2067986
- 0/1 defined
zoom
C
20
H
21
NO
5
355.38444
27
19
0
0
1073391
zoom
C
20
H
21
NO
5
355.3844
27
17
0
0
1096125
zoom
C
20
H
21
NO
5
355.3844
26
20
0
0
1
2
3
4
5
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