Jump to main content
Jump to site nav
Home
About us
Membership & professional community
Campaigning & outreach
Journals, books & databases
Teaching & learning
News & events
Locations & contacts
Home
About us
Web APIs
Help
Sign in
ChemSpider
Search and share chemistry
Simple
Structure
Advanced
History
Molecular Formula:
Define range intervals using parentheses.
E.g. C7H(10-14)O(0-4)
Molecular Weight:
to
±
(example: 123 ± 1)
min/max
+/-
Nominal Mass:
to
±
-2H+
-H+
+H+
+2H+
min/max
+/-
Average Mass:
to
±
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:
to
±
M+CH3CNH
M+CH3OH2
M+.
M+K
M+Na
M+NH4
M+H
M-H
M+acetate
M-.
M+Cl
-e
+e
min/max
+/-
Search
Search Hits Limit:
100
1000
10000
Filter
Single/Multi-component
Search Any
Search Single-Component Structures Only
Search Multi-Component Structures Only
Isotopically Labeled
Search Any
Search Isotopically Labeled Structures Only
Disregard Isotopically Labeled Structures
Additional Filters
Filter only those having analytical data
Found 198 results
Search term:
MF = 'C_{20}H_{14}FN_{5}O_{2}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
4071717
zoom
C
20
H
14
FN
5
O
2
375.3558632
23
13
0
0
17129011
zoom
C
20
H
14
FN
5
O
2
375.3559
18
9
0
0
5902414
zoom
C
20
H
14
FN
5
O
2
375.3559
17
10
0
0
18479012
zoom
C
20
H
14
FN
5
O
2
375.3559
15
11
0
0
23485773
zoom
C
20
H
14
FN
5
O
2
375.3559
13
8
0
0
4052766
zoom
C
20
H
14
FN
5
O
2
375.3558632
13
8
0
0
32080435
- 0/1 defined
zoom
C
20
H
14
FN
5
O
2
375.3559
11
9
0
0
6793436
zoom
C
20
H
14
FN
5
O
2
375.3559
10
8
0
0
21715089
zoom
C
20
H
14
FN
5
O
2
375.3559
9
6
0
0
21773595
zoom
C
20
H
14
FN
5
O
2
375.3559
8
6
0
0
22843903
zoom
C
20
H
14
FN
5
O
2
375.3559
8
7
0
0
22843911
zoom
C
20
H
14
FN
5
O
2
375.3559
8
7
0
0
29565954
zoom
C
20
H
14
FN
5
O
2
375.3559
8
8
0
0
29618618
zoom
C
20
H
14
FN
5
O
2
375.3559
8
7
0
0
30026066
zoom
C
20
H
14
FN
5
O
2
375.3559
7
7
0
0
30051409
zoom
C
20
H
14
FN
5
O
2
375.3559
7
7
0
0
30070233
zoom
C
20
H
14
FN
5
O
2
375.3559
7
7
0
0
30629406
zoom
C
20
H
14
FN
5
O
2
375.3559
6
7
0
0
30699014
zoom
C
20
H
14
FN
5
O
2
375.3559
6
7
0
0
30057626
zoom
C
20
H
14
FN
5
O
2
375.3559
6
5
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement