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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+.
M+K
M+Na
M+NH4
M+H
M-H
M+acetate
M-.
M+Cl
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+e
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M+CH3CNH
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M+Na
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Found 2591 results
Search term:
MF = 'C_{21}H_{19}NO_{3}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
88663
- 0/1 defined
zoom
C
21
H
19
NO
3
333.3805
69
64
0
0
9431096
zoom
C
21
H
19
NO
3
333.3805
45
28
0
0
70696
zoom
C
21
H
19
NO
3
333.3805
42
30
0
0
1619196
zoom
C
21
H
19
NO
3
333.3805
35
20
0
0
5282271
zoom
C
21
H
19
NO
3
333.3805
31
24
0
0
695288
zoom
C
21
H
19
NO
3
333.3805
30
17
0
0
588727
zoom
C
21
H
19
NO
3
333.3805
30
18
0
0
598575
zoom
C
21
H
19
NO
3
333.3805
30
17
0
0
32055594
zoom
C
21
H
19
NO
3
333.3805
30
31
0
0
581067
zoom
C
21
H
19
NO
3
333.3805
29
15
0
0
631825
zoom
C
21
H
19
NO
3
333.3805
29
18
0
0
647146
zoom
C
21
H
19
NO
3
333.3805
29
17
0
0
607101
zoom
C
21
H
19
NO
3
333.3805
28
15
0
0
698504
zoom
C
21
H
19
NO
3
333.3805
28
18
0
0
747154
zoom
C
21
H
19
NO
3
333.3805
27
17
0
0
770615
zoom
C
21
H
19
NO
3
333.3805
27
19
0
0
2193935
- 0/1 defined
zoom
C
21
H
19
NO
3
333.38046
27
18
0
0
611534
zoom
C
21
H
19
NO
3
333.3805
27
16
0
0
621313
zoom
C
21
H
19
NO
3
333.3805
27
18
0
0
684675
zoom
C
21
H
19
NO
3
333.3805
27
17
0
0
1
2
3
4
5
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