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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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Nominal Mass:
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-2H+
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+H+
+2H+
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Average Mass:
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M+CH3CNH
M+CH3OH2
M+.
M+K
M+Na
M+NH4
M+H
M-H
M+acetate
M-.
M+Cl
-e
+e
min/max
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Monoisotopic Mass:
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M+CH3CNH
M+CH3OH2
M+.
M+K
M+Na
M+NH4
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M-H
M+acetate
M-.
M+Cl
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Found 71 results
Search term:
MF = 'C_{18}H_{19}N_{4}O_{2}'
1
2
3
4
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
64943
- 0/1 defined
zoom
C
18
H
19
N
4
O
2
323.3685
6
3
0
0
2004013
zoom
C
18
H
19
N
4
O
2
323.36906
6
2
0
0
593568
zoom
C
18
H
19
N
4
O
2
323.3685
5
4
0
0
5193129
zoom
C
18
H
19
N
4
O
2
323.3685
3
2
0
0
5473778
- 1/1 defined
zoom
C
18
H
19
N
4
O
2
323.3685
2
1
0
0
5672943
- 1/1 defined
zoom
C
18
H
19
N
4
O
2
323.3685
2
1
0
0
5672944
- 1/1 defined
zoom
C
18
H
19
N
4
O
2
323.3685
2
1
0
0
5779949
- 1/1 defined
zoom
C
18
H
19
N
4
O
2
323.3685
2
1
0
0
4332902
- 0/1 defined
zoom
C
18
H
19
N
4
O
2
323.36906
2
1
0
0
6060467
zoom
C
18
H
19
N
4
O
2
323.3685
1
1
0
0
6181716
- 2/2 defined
zoom
C
18
H
19
N
4
O
2
323.3696
1
1
0
0
6181719
- 2/2 defined
zoom
C
18
H
19
N
4
O
2
323.3696
1
1
0
0
6181722
- 2/2 defined
zoom
C
18
H
19
N
4
O
2
323.3696
1
1
0
0
6181725
- 2/2 defined
zoom
C
18
H
19
N
4
O
2
323.3696
1
1
0
0
6904507
- 3/3 defined
zoom
C
18
H
19
N
4
O
2
323.3685
1
1
0
0
6904513
- 3/3 defined
zoom
C
18
H
19
N
4
O
2
323.3685
1
1
0
0
6904587
- 3/3 defined
zoom
C
18
H
19
N
4
O
2
323.3685
1
1
0
0
6904593
- 3/3 defined
zoom
C
18
H
19
N
4
O
2
323.3685
1
1
0
0
6905505
- 5/5 defined
zoom
C
18
H
19
N
4
O
2
323.3685
1
1
0
0
6905510
- 5/5 defined
zoom
C
18
H
19
N
4
O
2
323.3685
1
1
0
0
1
2
3
4
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