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 1051 results
Search term:
MF = 'C_{20}H_{19}FN_{4}O_{4}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
9742243
- 2/2 defined
zoom
C
20
H
19
FN
4
O
4
398.3877
47
48
0
0
2126695
- 0/1 defined
zoom
C
20
H
19
FN
4
O
4
398.3876632
29
19
0
0
5264011
zoom
C
20
H
19
FN
4
O
4
398.3877
25
16
0
0
2206111
- 0/1 defined
zoom
C
20
H
19
FN
4
O
4
398.3876632
24
18
0
0
2141895
- 0/1 defined
zoom
C
20
H
19
FN
4
O
4
398.3876632
23
16
0
0
2205827
- 0/1 defined
zoom
C
20
H
19
FN
4
O
4
398.3876632
23
16
0
0
2255197
- 0/1 defined
zoom
C
20
H
19
FN
4
O
4
398.3876632
22
18
0
0
7840056
zoom
C
20
H
19
FN
4
O
4
398.3877
21
15
0
0
2707587
- 0/1 defined
zoom
C
20
H
19
FN
4
O
4
398.3876632
19
12
0
0
2602956
- 0/1 defined
zoom
C
20
H
19
FN
4
O
4
398.3877
18
14
0
0
10073953
- 4/4 defined
zoom
C
20
H
19
FN
4
O
4
398.3877
17
11
0
0
4464090
zoom
C
20
H
19
FN
4
O
4
398.3876632
17
12
0
0
12521686
zoom
C
20
H
19
FN
4
O
4
398.3877
15
14
0
0
12598572
zoom
C
20
H
19
FN
4
O
4
398.3877
14
12
0
0
3844863
- 0/1 defined
zoom
C
20
H
19
FN
4
O
4
398.3877
14
7
0
0
17475199
- 3/4 defined
zoom
C
20
H
19
FN
4
O
4
398.3877
13
9
0
0
22363518
- 0/1 defined
zoom
C
20
H
19
FN
4
O
4
398.3877
13
10
0
0
32083336
- 0/1 defined
zoom
C
20
H
19
FN
4
O
4
398.3877
13
8
0
0
32083341
- 0/1 defined
zoom
C
20
H
19
FN
4
O
4
398.3877
13
8
0
0
12521069
zoom
C
20
H
19
FN
4
O
4
398.3877
13
9
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement