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 622 results
Search term:
MF = 'C_{20}H_{18}F_{3}NO_{4}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
21373863
- 0/2 defined
zoom
C
20
H
18
F
3
NO
4
393.3564
33
24
0
0
4479779
zoom
C
20
H
18
F
3
NO
4
393.3564
28
16
0
0
4568081
zoom
C
20
H
18
F
3
NO
4
393.3564
19
14
0
0
115290
- 2/2 defined
zoom
C
20
H
18
F
3
NO
4
393.3564
19
17
0
0
4597023
zoom
C
20
H
18
F
3
NO
4
393.3564
18
10
0
0
3026599
zoom
C
20
H
18
F
3
NO
4
393.3564296
17
10
0
0
2715185
- 0/1 defined
zoom
C
20
H
18
F
3
NO
4
393.3564296
16
15
0
0
1609247
zoom
C
20
H
18
F
3
NO
4
393.3564
16
14
0
0
3989495
zoom
C
20
H
18
F
3
NO
4
393.3564
16
11
0
0
30719894
zoom
C
20
H
18
F
3
NO
4
393.3564
15
9
0
0
4084215
zoom
C
20
H
18
F
3
NO
4
393.3564296
13
10
0
0
2104343
zoom
C
20
H
18
F
3
NO
4
393.3564296
12
8
0
0
3968165
zoom
C
20
H
18
F
3
NO
4
393.3564
12
8
0
0
1735083
zoom
C
20
H
18
F
3
NO
4
393.3564
11
7
0
0
1754165
zoom
C
20
H
18
F
3
NO
4
393.3564
11
9
0
0
5682104
zoom
C
20
H
18
F
3
NO
4
393.3564
11
11
0
0
4823975
zoom
C
20
H
18
F
3
NO
4
393.3564
11
10
0
0
5018368
zoom
C
20
H
18
F
3
NO
4
393.3564
10
9
0
0
7997661
- 0/2 defined
zoom
C
20
H
18
F
3
NO
4
393.3564
10
8
0
0
30770118
- 0/1 defined
zoom
C
20
H
18
F
3
NO
4
393.3564
10
9
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement