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ChemSpider
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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
-e
+e
min/max
+/-
Monoisotopic Mass:
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M+CH3CNH
M+CH3OH2
M+.
M+K
M+Na
M+NH4
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M-H
M+acetate
M-.
M+Cl
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Found 104 results
Search term:
MF = 'C_{21}H_{31}N_{4}O_{3}'
1
2
3
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5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
8105714
- 0/1 defined
zoom
C
21
H
31
N
4
O
3
387.4953
2
1
0
0
6689011
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6734232
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6748241
- 1/1 defined
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6748244
- 1/1 defined
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6748362
- 2/2 defined
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6748364
- 2/2 defined
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6748366
- 2/2 defined
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6748368
- 2/2 defined
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6749414
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6753740
- 1/1 defined
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6753744
- 1/1 defined
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6918309
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6975789
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6977251
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
6988835
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
7019319
- 1/1 defined
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
7019324
- 1/1 defined
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
7026341
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
7229374
- 1/1 defined
zoom
C
21
H
31
N
4
O
3
387.4953
1
1
0
0
1
2
3
4
5
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