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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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+H+
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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
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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 127 results
Search term:
MF = 'C_{21}H_{14}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
40367
zoom
C
21
H
14
266.3359
41
39
0
1
40366
zoom
C
21
H
14
266.3359
26
27
0
1
16046
zoom
C
21
H
14
266.3359
26
42
15
4
40391
zoom
C
21
H
14
266.3359
24
28
0
0
17715
zoom
C
21
H
14
266.3359
23
30
0
0
8805
zoom
C
21
H
14
266.3359
22
20
0
1
60792
zoom
C
21
H
14
266.3359
19
24
1
1
64225
zoom
C
21
H
14
266.3359
19
21
0
0
35304
zoom
C
21
H
14
266.3359
17
22
0
0
26079
zoom
C
21
H
14
266.3359
17
19
0
2
60805
zoom
C
21
H
14
266.3359
16
21
0
0
144257
zoom
C
21
H
14
266.3359
14
11
0
0
26076
zoom
C
21
H
14
266.3359
14
22
0
0
26077
zoom
C
21
H
14
266.3359
13
17
0
2
26078
zoom
C
21
H
14
266.3359
13
17
0
0
19409
zoom
C
21
H
14
266.3359
13
15
0
0
30040
zoom
C
21
H
14
266.3359
13
17
1
7
46321
zoom
C
21
H
14
266.3359
13
16
0
0
60811
zoom
C
21
H
14
266.3359
12
13
1
1
2033164
zoom
C
21
H
14
266.33586
11
9
0
0
1
2
3
4
5
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