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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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M+CH3CNH
M+CH3OH2
M+.
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M+Na
M+NH4
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M-H
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+e
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M+CH3CNH
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Found 928 results
Search term:
MF = 'C_{21}H_{28}N_{4}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
227203
zoom
C
21
H
28
N
4
336.4738
28
18
0
0
845422
zoom
C
21
H
28
N
4
336.4738
21
16
0
0
659638
zoom
C
21
H
28
N
4
336.4738
20
14
0
0
1255256
zoom
C
21
H
28
N
4
336.4738
19
13
0
0
1439709
zoom
C
21
H
28
N
4
336.4738
19
12
0
0
4660987
zoom
C
21
H
28
N
4
336.4738
18
12
0
0
4607465
zoom
C
21
H
28
N
4
336.4738
17
11
0
0
2232070
zoom
C
21
H
28
N
4
336.47382
17
14
0
0
2943090
- 0/2 defined
zoom
C
21
H
28
N
4
336.47382
17
11
0
0
3474552
zoom
C
21
H
28
N
4
336.47382
17
11
0
0
705801
zoom
C
21
H
28
N
4
336.4738
17
11
0
0
21369697
zoom
C
21
H
28
N
4
336.4738
16
11
0
0
4543959
zoom
C
21
H
28
N
4
336.4738
15
11
0
0
5259495
zoom
C
21
H
28
N
4
336.4738
14
8
0
0
17317702
zoom
C
21
H
28
N
4
336.4738
12
9
0
0
17320780
- 0/1 defined
zoom
C
21
H
28
N
4
336.4738
12
11
0
0
208784
zoom
C
21
H
28
N
4
336.4738
12
6
0
0
708555
zoom
C
21
H
28
N
4
336.4738
12
9
0
0
725352
zoom
C
21
H
28
N
4
336.4738
12
5
0
0
816503
zoom
C
21
H
28
N
4
336.4738
12
11
0
0
1
2
3
4
5
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