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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:
to
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(example: 123 ± 1)
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Nominal Mass:
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+H+
+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
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-.
M+Cl
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Found 6731 results
Search term:
MF = 'C_{18}H_{20}N_{4}O_{4}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
9799348
zoom
C
18
H
20
N
4
O
4
356.3758
47
41
0
0
2136600
zoom
C
18
H
20
N
4
O
4
356.3758
45
32
0
0
1423237
zoom
C
18
H
20
N
4
O
4
356.3758
31
20
0
0
2168674
zoom
C
18
H
20
N
4
O
4
356.3758
27
17
0
0
3047877
zoom
C
18
H
20
N
4
O
4
356.3758
27
20
0
0
13626460
zoom
C
18
H
20
N
4
O
4
356.3758
27
31
0
0
2406759
- 0/1 defined
zoom
C
18
H
20
N
4
O
4
356.3758
26
18
0
0
566758
- 0/1 defined
zoom
C
18
H
20
N
4
O
4
356.3758
26
18
0
0
1239651
zoom
C
18
H
20
N
4
O
4
356.3758
25
17
0
0
2406758
- 0/1 defined
zoom
C
18
H
20
N
4
O
4
356.3758
25
17
0
0
3092080
zoom
C
18
H
20
N
4
O
4
356.3758
25
12
0
0
112024
zoom
C
18
H
20
N
4
O
4
356.3758
24
22
0
0
11730519
zoom
C
18
H
20
N
4
O
4
356.3758
23
13
0
0
12277842
zoom
C
18
H
20
N
4
O
4
356.3758
22
14
0
0
2631119
- 0/1 defined
zoom
C
18
H
20
N
4
O
4
356.3758
22
16
0
0
12666242
zoom
C
18
H
20
N
4
O
4
356.3758
21
15
0
0
3063948
- 0/2 defined
zoom
C
18
H
20
N
4
O
4
356.3758
21
18
0
0
11888810
zoom
C
18
H
20
N
4
O
4
356.3758
21
14
0
0
11969342
zoom
C
18
H
20
N
4
O
4
356.3758
21
16
0
0
11969411
zoom
C
18
H
20
N
4
O
4
356.3758
21
15
0
0
1
2
3
4
5
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