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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
M+acetate
M-.
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+e
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Monoisotopic Mass:
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M+CH3CNH
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Found 147 results
Search term:
MF = 'C_{21}H_{14}O_{4}'
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ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
4552744
zoom
C
21
H
14
O
4
330.3335
37
25
0
0
616331
zoom
C
21
H
14
O
4
330.3335
25
14
0
0
698884
zoom
C
21
H
14
O
4
330.3335
24
16
0
0
1714099
zoom
C
21
H
14
O
4
330.3335
22
17
0
0
21267721
zoom
C
21
H
14
O
4
330.3335
22
23
0
0
700416
zoom
C
21
H
14
O
4
330.3335
20
15
0
0
547321
zoom
C
21
H
14
O
4
330.3335
20
13
0
0
2988026
zoom
C
21
H
14
O
4
330.33346
20
17
0
0
2928449
zoom
C
21
H
14
O
4
330.33346
19
14
0
0
636133
zoom
C
21
H
14
O
4
330.3335
19
11
0
0
722958
zoom
C
21
H
14
O
4
330.3335
19
11
0
0
668012
zoom
C
21
H
14
O
4
330.3335
18
13
0
0
4589198
zoom
C
21
H
14
O
4
330.3335
18
14
0
0
21502088
zoom
C
21
H
14
O
4
330.3335
17
10
0
0
742490
zoom
C
21
H
14
O
4
330.3335
16
10
0
0
4741283
zoom
C
21
H
14
O
4
330.3335
15
10
0
0
4398789
zoom
C
21
H
14
O
4
330.33346
12
8
0
0
1753586
zoom
C
21
H
14
O
4
330.3335
12
8
0
0
1988809
zoom
C
21
H
14
O
4
330.3335
12
8
0
0
2003639
zoom
C
21
H
14
O
4
330.33346
12
8
0
0
1
2
3
4
5
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