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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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M+CH3CNH
M+CH3OH2
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M+Na
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M-H
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+e
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Found 2367 results
Search term:
MF = 'C_{20}H_{21}NO_{4}S'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
2006759
- 1/1 defined
zoom
C
20
H
21
NO
4
S
371.45004
110
80
0
0
5360651
- 1/1 defined
zoom
C
20
H
21
NO
4
S
371.45
96
64
0
0
30687762
zoom
C
20
H
21
NO
4
S
371.45
55
55
0
0
90460
- 0/1 defined
zoom
C
20
H
21
NO
4
S
371.45
54
52
0
0
5378862
- 1/1 defined
zoom
C
20
H
21
NO
4
S
371.45
50
38
0
0
319785
zoom
C
20
H
21
NO
4
S
371.45
34
28
0
0
21373378
- 2/2 defined
zoom
C
20
H
21
NO
4
S
371.45
31
22
0
0
2165751
zoom
C
20
H
21
NO
4
S
371.45004
30
15
0
0
854869
zoom
C
20
H
21
NO
4
S
371.45
29
18
0
0
924025
zoom
C
20
H
21
NO
4
S
371.45
28
15
0
0
999158
zoom
C
20
H
21
NO
4
S
371.45
25
15
0
0
3613846
- 0/1 defined
zoom
C
20
H
21
NO
4
S
371.45004
25
18
0
0
34452169
- 0/2 defined
zoom
C
20
H
21
NO
4
S
371.45
25
17
0
0
1117696
zoom
C
20
H
21
NO
4
S
371.45
24
17
0
0
1502722
zoom
C
20
H
21
NO
4
S
371.45
23
14
0
0
534423
- 0/2 defined
zoom
C
20
H
21
NO
4
S
371.45
22
20
0
0
1049865
zoom
C
20
H
21
NO
4
S
371.45
21
15
0
0
4568630
zoom
C
20
H
21
NO
4
S
371.45
21
15
0
0
4192494
- 0/1 defined
zoom
C
20
H
21
NO
4
S
371.45004
20
12
0
0
1000578
zoom
C
20
H
21
NO
4
S
371.45
20
11
0
0
1
2
3
4
5
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