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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+
-H+
+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
+/-
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
-e
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Found 103 results
Search term:
MF = 'C_{18}H_{20}NO_{3}'
1
2
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5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
26331194
- 4/4 defined
zoom
C
18
H
20
NO
3
298.3558
3
3
0
0
26331765
- 3/3 defined
zoom
C
18
H
20
NO
3
298.3558
3
3
0
0
128920283
- 3/3 defined
zoom
C
18
H
20
NO
3
298.3558
2
2
0
0
5454527
zoom
C
18
H
20
NO
3
298.3558
2
2
0
0
7123169
zoom
C
18
H
20
NO
3
298.3558
2
1
0
0
7153133
zoom
C
18
H
20
NO
3
298.3558
2
1
0
0
7169170
zoom
C
18
H
20
NO
3
298.3558
2
1
0
0
8058367
zoom
C
18
H
20
NO
3
298.3558
2
1
0
0
3676346
zoom
C
18
H
20
NO
3
298.3563
2
1
0
0
3734173
zoom
C
18
H
20
NO
3
298.3563
2
1
0
0
17579140
- 0/1 defined
zoom
C
18
H
20
NO
3
298.3558
2
1
0
0
21432371
zoom
C
18
H
20
NO
3
298.3563
2
2
0
0
21433329
- 0/1 defined
zoom
C
18
H
20
NO
3
298.3568
2
2
0
0
19953999
- 0/1 defined
zoom
C
18
H
20
NO
3
298.3568
1
1
0
0
5414771
- 0/4 defined
zoom
C
18
H
20
NO
3
298.3568
1
1
0
0
1618908
- 4/4 defined
zoom
C
18
H
20
NO
3
298.3568
1
1
0
0
2836990
zoom
C
18
H
20
NO
3
298.3563
1
1
0
0
10001092
- 0/1 defined
zoom
C
18
H
20
NO
3
298.3558
1
1
0
0
10096569
- 4/4 defined
zoom
C
18
H
20
NO
3
298.3568
1
1
0
0
10096571
- 4/4 defined
zoom
C
18
H
20
NO
3
298.3568
1
1
0
0
1
2
3
4
5
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