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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+
+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
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+e
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Monoisotopic Mass:
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M+CH3CNH
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M+.
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M+Na
M+NH4
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Found 17836 results
Search term:
MF = 'C_{19}H_{21}NO_{3}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
2044613
- 0/1 defined
zoom
C
19
H
21
NO
3
311.37494
64
56
0
0
2018150
zoom
C
19
H
21
NO
3
311.37494
54
33
0
0
4481822
- 3/3 defined
zoom
C
19
H
21
NO
3
311.3749
50
75
291
568
94191
zoom
C
19
H
21
NO
3
311.3749
47
38
0
0
2044646
zoom
C
19
H
21
NO
3
311.37494
42
35
0
0
4447643
- 5/5 defined
zoom
C
19
H
21
NO
3
311.3749
38
117
664
392
671324
zoom
C
19
H
21
NO
3
311.3749
34
20
0
0
9100228
- 1/1 defined
zoom
C
19
H
21
NO
3
311.3749
34
22
0
0
10528131
zoom
C
19
H
21
NO
3
311.3749
34
16
0
0
21830453
- 1/1 defined
zoom
C
19
H
21
NO
3
311.3749
32
26
0
0
24541253
- 2/2 defined
zoom
C
19
H
21
NO
3
311.3749
32
14
0
0
21398936
zoom
C
19
H
21
NO
3
311.3749
31
25
0
0
4053643
- 0/1 defined
zoom
C
19
H
21
NO
3
311.37494
31
24
0
0
545754
- 0/1 defined
zoom
C
19
H
21
NO
3
311.3749
31
32
13
38
631051
zoom
C
19
H
21
NO
3
311.3749
31
19
0
0
669528
zoom
C
19
H
21
NO
3
311.3749
31
18
0
0
4235623
- 0/1 defined
zoom
C
19
H
21
NO
3
311.37494
30
22
0
0
21398938
zoom
C
19
H
21
NO
3
311.3749
30
24
0
0
21399390
zoom
C
19
H
21
NO
3
311.3749
30
25
0
0
735676
zoom
C
19
H
21
NO
3
311.3749
30
19
0
0
1
2
3
4
5
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