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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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+2H+
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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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M+Na
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Found 1193 results
Search term:
MF = 'C_{21}H_{16}N_{4}O_{4}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
1024787
zoom
C
21
H
16
N
4
O
4
388.3761
24
15
0
0
1145963
zoom
C
21
H
16
N
4
O
4
388.3761
24
15
0
0
3046640
- 0/1 defined
zoom
C
21
H
16
N
4
O
4
388.37614
24
17
0
0
1143683
zoom
C
21
H
16
N
4
O
4
388.3761
23
15
0
0
1095906
zoom
C
21
H
16
N
4
O
4
388.3761
21
16
0
0
927187
zoom
C
21
H
16
N
4
O
4
388.3761
21
13
0
0
2593004
zoom
C
21
H
16
N
4
O
4
388.3761
21
16
0
0
2896766
- 0/1 defined
zoom
C
21
H
16
N
4
O
4
388.37614
21
14
0
0
3779384
zoom
C
21
H
16
N
4
O
4
388.37614
21
12
0
0
4079872
- 0/1 defined
zoom
C
21
H
16
N
4
O
4
388.37614
20
14
0
0
4457539
zoom
C
21
H
16
N
4
O
4
388.37614
20
16
0
0
939861
zoom
C
21
H
16
N
4
O
4
388.3761
20
13
0
0
970942
zoom
C
21
H
16
N
4
O
4
388.3761
20
12
0
0
1497965
zoom
C
21
H
16
N
4
O
4
388.3761
20
12
0
0
939862
zoom
C
21
H
16
N
4
O
4
388.3761
19
12
0
0
4672388
zoom
C
21
H
16
N
4
O
4
388.3761
19
17
0
0
20523808
zoom
C
21
H
16
N
4
O
4
388.3761
19
12
0
0
2972647
zoom
C
21
H
16
N
4
O
4
388.37614
19
14
0
0
2726940
- 0/1 defined
zoom
C
21
H
16
N
4
O
4
388.37614
19
12
0
0
3494240
- 0/1 defined
zoom
C
21
H
16
N
4
O
4
388.37614
18
12
0
0
1
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5
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