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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
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Monoisotopic Mass:
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M+CH3CNH
M+CH3OH2
M+.
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M+Na
M+NH4
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M-.
M+Cl
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Found 16724 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
60
85
0
0
4481822
- 3/3 defined
zoom
C
19
H
21
NO
3
311.3749
50
77
291
568
2018150
zoom
C
19
H
21
NO
3
311.37494
48
56
0
0
94191
zoom
C
19
H
21
NO
3
311.3749
45
56
0
0
2044646
zoom
C
19
H
21
NO
3
311.37494
41
52
0
0
4447643
- 5/5 defined
zoom
C
19
H
21
NO
3
311.3749
38
122
664
392
9100228
- 1/1 defined
zoom
C
19
H
21
NO
3
311.3749
34
39
0
0
10528131
zoom
C
19
H
21
NO
3
311.3749
33
36
0
0
671324
zoom
C
19
H
21
NO
3
311.3749
31
42
0
0
24541253
- 2/2 defined
zoom
C
19
H
21
NO
3
311.3749
31
35
0
0
545754
- 0/1 defined
zoom
C
19
H
21
NO
3
311.3749
30
38
13
38
631051
zoom
C
19
H
21
NO
3
311.3749
30
34
0
0
21830453
- 1/1 defined
zoom
C
19
H
21
NO
3
311.3749
30
37
0
0
4053643
- 0/1 defined
zoom
C
19
H
21
NO
3
311.37494
30
39
0
0
4135752
zoom
C
19
H
21
NO
3
311.37494
29
38
0
0
735676
zoom
C
19
H
21
NO
3
311.3749
29
33
0
0
669528
zoom
C
19
H
21
NO
3
311.3749
29
35
0
0
38952
zoom
C
19
H
21
NO
3
311.3749
28
32
0
0
638229
zoom
C
19
H
21
NO
3
311.3749
28
35
0
0
2161141
- 0/1 defined
zoom
C
19
H
21
NO
3
311.37494
28
33
0
0
1
2
3
4
5
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