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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
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+e
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M+CH3CNH
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Found 1082 results
Search term:
MF = 'C_{21}H_{21}NO_{7}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
1026044
zoom
C
21
H
21
NO
7
399.3939
37
30
0
0
26457776
- 0/1 defined
zoom
C
21
H
21
NO
7
399.3939
30
24
0
0
2066943
- 0/2 defined
zoom
C
21
H
21
NO
7
399.39394
28
22
0
0
1394260
zoom
C
21
H
21
NO
7
399.3939
23
15
0
0
1084125
zoom
C
21
H
21
NO
7
399.3939
22
15
0
0
1113693
zoom
C
21
H
21
NO
7
399.3939
20
14
0
0
1026047
zoom
C
21
H
21
NO
7
399.3939
20
13
0
0
1454342
zoom
C
21
H
21
NO
7
399.3939
20
12
0
0
390785
- 2/2 defined
zoom
C
21
H
21
NO
7
399.3939
19
22
0
2
1384821
zoom
C
21
H
21
NO
7
399.3939
19
11
0
0
1083228
zoom
C
21
H
21
NO
7
399.3939
19
15
0
0
2243333
zoom
C
21
H
21
NO
7
399.39394
19
17
0
0
2736756
- 0/2 defined
zoom
C
21
H
21
NO
7
399.39394
19
39
0
0
4365669
- 0/4 defined
zoom
C
21
H
21
NO
7
399.39394
19
13
0
0
4857731
zoom
C
21
H
21
NO
7
399.3939
19
12
0
0
6333926
zoom
C
21
H
21
NO
7
399.3939
19
13
0
0
21082002
zoom
C
21
H
21
NO
7
399.3939
18
11
0
0
2184898
- 0/4 defined
zoom
C
21
H
21
NO
7
399.39394
18
14
0
0
1362002
zoom
C
21
H
21
NO
7
399.3939
18
12
0
0
1694287
zoom
C
21
H
21
NO
7
399.3939
18
14
0
0
1
2
3
4
5
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