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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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Average Mass:
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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 30394 results
Search term:
MF = 'C_{18}H_{21}NO_{2}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
2791345
zoom
C
18
H
21
NO
2
283.36484
90
56
0
2
33033
zoom
C
18
H
21
NO
2
283.3648
54
29
0
0
26403888
zoom
C
18
H
21
NO
2
283.3648
53
36
0
0
2038097
- 0/1 defined
zoom
C
18
H
21
NO
2
283.36484
49
31
0
0
14153863
zoom
C
18
H
21
NO
2
283.3648
44
32
0
0
20126976
zoom
C
18
H
21
NO
2
283.3648
40
38
0
0
2266546
zoom
C
18
H
21
NO
2
283.36484
40
28
0
0
1622395
zoom
C
18
H
21
NO
2
283.3648
39
28
0
0
2129337
- 0/1 defined
zoom
C
18
H
21
NO
2
283.36484
39
26
0
0
1452476
zoom
C
18
H
21
NO
2
283.3648
38
27
0
0
21413851
- 0/1 defined
zoom
C
18
H
21
NO
2
283.3648
38
34
0
0
586719
zoom
C
18
H
21
NO
2
283.3648
37
23
0
0
23079610
zoom
C
18
H
21
NO
2
283.3648
35
24
0
0
8859749
- 2/2 defined
zoom
C
18
H
21
NO
2
283.3648
34
19
0
0
726024
zoom
C
18
H
21
NO
2
283.3648
34
20
0
0
25275
zoom
C
18
H
21
NO
2
283.3648
34
35
0
0
175542
zoom
C
18
H
21
NO
2
283.3648
33
35
0
0
11877622
zoom
C
18
H
21
NO
2
283.3648
33
23
0
0
12588342
- 0/1 defined
zoom
C
18
H
21
NO
2
283.3648
33
22
0
0
13981881
- 0/2 defined
zoom
C
18
H
21
NO
2
283.3648
32
27
0
0
1
2
3
4
5
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