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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)
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(example: 123 ± 1)
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Found 5750 results
Search term:
MF = 'C_{21}H_{20}N_{2}O_{4}S'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
1031997
zoom
C
21
H
20
N
2
O
4
S
396.4595
29
18
0
0
1032001
zoom
C
21
H
20
N
2
O
4
S
396.4595
28
18
0
0
1086849
zoom
C
21
H
20
N
2
O
4
S
396.4595
27
18
0
0
874953
zoom
C
21
H
20
N
2
O
4
S
396.4595
27
17
0
0
936277
zoom
C
21
H
20
N
2
O
4
S
396.4595
27
26
0
0
2259597
zoom
C
21
H
20
N
2
O
4
S
396.4595
27
18
0
0
2263114
zoom
C
21
H
20
N
2
O
4
S
396.4595
27
18
0
0
2264368
zoom
C
21
H
20
N
2
O
4
S
396.4595
27
19
0
0
1031947
zoom
C
21
H
20
N
2
O
4
S
396.4595
27
15
0
0
985602
zoom
C
21
H
20
N
2
O
4
S
396.4595
26
18
0
0
943467
zoom
C
21
H
20
N
2
O
4
S
396.4595
26
17
0
0
1097909
zoom
C
21
H
20
N
2
O
4
S
396.4595
26
19
0
0
1142627
zoom
C
21
H
20
N
2
O
4
S
396.4595
26
18
0
0
2191963
- 0/1 defined
zoom
C
21
H
20
N
2
O
4
S
396.4595
25
18
0
0
968370
zoom
C
21
H
20
N
2
O
4
S
396.4595
25
16
0
0
943419
zoom
C
21
H
20
N
2
O
4
S
396.4595
25
17
0
0
1025441
zoom
C
21
H
20
N
2
O
4
S
396.4595
25
15
0
0
2390195
- 0/1 defined
zoom
C
21
H
20
N
2
O
4
S
396.4595
25
17
0
0
2412943
zoom
C
21
H
20
N
2
O
4
S
396.4595
25
14
0
0
4137743
zoom
C
21
H
20
N
2
O
4
S
396.4595
24
15
0
0
1
2
3
4
5
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