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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 3287 results
Search term:
MF = 'C_{21}H_{19}NO_{4}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
425346
zoom
C
21
H
19
NO
4
349.3799
61
60
0
0
5381872
- 1/1 defined
zoom
C
21
H
19
NO
4
349.3799
61
38
0
0
5370800
- 2/2 defined
zoom
C
21
H
19
NO
4
349.3799
59
45
0
0
2042426
- 1/1 defined
zoom
C
21
H
19
NO
4
349.37986
54
40
0
0
5370798
- 2/2 defined
zoom
C
21
H
19
NO
4
349.3799
53
30
0
0
5373306
- 1/1 defined
zoom
C
21
H
19
NO
4
349.3799
52
27
0
0
24593867
- 1/1 defined
zoom
C
21
H
19
NO
4
349.3799
52
44
0
0
24593868
- 1/1 defined
zoom
C
21
H
19
NO
4
349.3799
48
34
0
0
5386354
- 1/1 defined
zoom
C
21
H
19
NO
4
349.3799
45
34
0
0
5383207
- 1/1 defined
zoom
C
21
H
19
NO
4
349.3799
38
28
0
0
716387
zoom
C
21
H
19
NO
4
349.3799
37
29
0
0
24747227
- 1/1 defined
zoom
C
21
H
19
NO
4
349.3799
36
31
0
0
2016213
- 0/2 defined
zoom
C
21
H
19
NO
4
349.37986
35
32
0
0
5383789
- 1/1 defined
zoom
C
21
H
19
NO
4
349.3799
30
22
0
0
652016
zoom
C
21
H
19
NO
4
349.3799
29
19
0
0
4938825
zoom
C
21
H
19
NO
4
349.3799
29
37
0
0
727609
zoom
C
21
H
19
NO
4
349.3799
29
18
0
0
765497
zoom
C
21
H
19
NO
4
349.3799
27
18
0
0
617407
zoom
C
21
H
19
NO
4
349.3799
27
18
0
0
27420092
zoom
C
21
H
19
NO
4
349.3799
27
23
0
0
1
2
3
4
5
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