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 28 results
Search term:
MF = 'C_{20}H_{13}F_{4}N_{5}OS'
1
2
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
18371701
zoom
C
20
H
13
F
4
N
5
OS
447.4087
10
8
0
0
18371702
zoom
C
20
H
13
F
4
N
5
OS
447.4087
10
8
0
0
18371760
zoom
C
20
H
13
F
4
N
5
OS
447.4087
10
8
0
0
18371761
zoom
C
20
H
13
F
4
N
5
OS
447.4087
10
8
0
0
18371762
zoom
C
20
H
13
F
4
N
5
OS
447.4087
10
8
0
0
18404393
zoom
C
20
H
13
F
4
N
5
OS
447.4087
10
9
0
0
18404394
zoom
C
20
H
13
F
4
N
5
OS
447.4087
10
9
0
0
18404395
zoom
C
20
H
13
F
4
N
5
OS
447.4087
10
9
0
0
20284880
zoom
C
20
H
13
F
4
N
5
OS
447.4087
10
7
0
0
11706646
zoom
C
20
H
13
F
4
N
5
OS
447.4087
9
7
0
0
8043920
zoom
C
20
H
13
F
4
N
5
OS
447.4087
7
6
0
0
11782681
- 0/1 defined
zoom
C
20
H
13
F
4
N
5
OS
447.4087
5
3
0
0
8302992
zoom
C
20
H
13
F
4
N
5
OS
447.4087
2
1
0
0
8463768
zoom
C
20
H
13
F
4
N
5
OS
447.4087
2
1
0
0
9692762
zoom
C
20
H
13
F
4
N
5
OS
447.4087
2
1
0
0
11706644
zoom
C
20
H
13
F
4
N
5
OS
447.4087
2
2
0
0
20992732
zoom
C
20
H
13
F
4
N
5
OS
447.4087
2
2
0
0
20992733
zoom
C
20
H
13
F
4
N
5
OS
447.4087
2
2
0
0
20992734
zoom
C
20
H
13
F
4
N
5
OS
447.4087
2
2
0
0
34380918
zoom
C
20
H
13
F
4
N
5
OS
447.4087
2
2
0
0
1
2
Advertisement
Advertisement
Spotlight
Advertisement