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ChemSpider
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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
M+.
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M+Na
M+NH4
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M-H
M+acetate
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+e
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M+CH3CNH
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Found 10466 results
Search term:
MF = 'C_{21}H_{28}N_{2}O_{2}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
64281
zoom
C
21
H
28
N
2
O
2
340.4592
89
69
0
0
79283
- 4/4 defined
zoom
C
21
H
28
N
2
O
2
340.4592
37
68
1
9
728655
zoom
C
21
H
28
N
2
O
2
340.4592
30
18
0
0
674926
zoom
C
21
H
28
N
2
O
2
340.4592
28
19
0
0
1365375
zoom
C
21
H
28
N
2
O
2
340.4592
28
16
0
0
1659042
zoom
C
21
H
28
N
2
O
2
340.4592
28
17
0
0
639794
zoom
C
21
H
28
N
2
O
2
340.4592
27
17
0
0
731727
zoom
C
21
H
28
N
2
O
2
340.4592
26
17
0
0
1617787
zoom
C
21
H
28
N
2
O
2
340.4592
26
17
0
0
2148820
zoom
C
21
H
28
N
2
O
2
340.45922
26
17
0
0
2149693
zoom
C
21
H
28
N
2
O
2
340.45922
26
17
0
0
675056
zoom
C
21
H
28
N
2
O
2
340.4592
25
18
0
0
673572
zoom
C
21
H
28
N
2
O
2
340.4592
25
17
0
0
1654975
zoom
C
21
H
28
N
2
O
2
340.4592
24
14
0
0
2154202
zoom
C
21
H
28
N
2
O
2
340.45922
24
15
0
0
2179805
- 0/4 defined
zoom
C
21
H
28
N
2
O
2
340.45922
23
11
0
0
575048
- 0/2 defined
zoom
C
21
H
28
N
2
O
2
340.4592
23
18
0
0
780038
zoom
C
21
H
28
N
2
O
2
340.4592
23
15
0
0
828174
zoom
C
21
H
28
N
2
O
2
340.4592
23
15
0
0
2148609
zoom
C
21
H
28
N
2
O
2
340.45922
23
15
0
0
1
2
3
4
5
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