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 491 results
Search term:
MF = 'C_{20}H_{20}F_{3}N_{3}O_{5}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
1107737
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
22
17
0
0
2224620
zoom
C
20
H
20
F
3
N
3
O
5
439.3851096
21
16
0
0
2750754
zoom
C
20
H
20
F
3
N
3
O
5
439.3851096
21
13
0
0
4214715
zoom
C
20
H
20
F
3
N
3
O
5
439.3851096
18
11
0
0
4456724
zoom
C
20
H
20
F
3
N
3
O
5
439.3851096
17
14
0
0
2258451
zoom
C
20
H
20
F
3
N
3
O
5
439.3851096
16
14
0
0
4738452
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
14
10
0
0
3571909
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
14
14
0
0
3147426
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
13
9
0
0
10989213
- 0/1 defined
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
12
9
0
0
5285724
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
11
10
0
0
2022895
zoom
C
20
H
20
F
3
N
3
O
5
439.3851096
10
8
0
0
11010723
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
10
8
0
0
18411121
- 0/1 defined
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
10
8
0
0
22058715
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
10
6
0
0
17093735
- 1/1 defined
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
9
7
0
0
17363841
- 1/1 defined
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
9
8
0
0
26565833
- 0/1 defined
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
9
8
0
0
30681367
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
9
8
0
0
22356324
zoom
C
20
H
20
F
3
N
3
O
5
439.3851
8
7
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement