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 996 results
Search term:
MF = 'C_{21}H_{19}F_{3}N_{2}O_{2}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
1275678
zoom
C
21
H
19
F
3
N
2
O
2
388.383
23
12
0
0
1313083
zoom
C
21
H
19
F
3
N
2
O
2
388.383
23
12
0
0
2869257
- 0/1 defined
zoom
C
21
H
19
F
3
N
2
O
2
388.3829696
23
12
0
0
1638357
zoom
C
21
H
19
F
3
N
2
O
2
388.383
22
16
0
0
6112008
zoom
C
21
H
19
F
3
N
2
O
2
388.383
22
20
0
0
1047038
zoom
C
21
H
19
F
3
N
2
O
2
388.383
21
16
0
0
4306475
zoom
C
21
H
19
F
3
N
2
O
2
388.3829696
21
11
0
0
1007287
zoom
C
21
H
19
F
3
N
2
O
2
388.383
20
11
0
0
1633651
zoom
C
21
H
19
F
3
N
2
O
2
388.383
19
15
0
0
3003624
zoom
C
21
H
19
F
3
N
2
O
2
388.3829696
18
16
0
0
1312364
zoom
C
21
H
19
F
3
N
2
O
2
388.383
18
10
0
0
2144437
- 0/2 defined
zoom
C
21
H
19
F
3
N
2
O
2
388.3829696
18
12
0
0
4090103
zoom
C
21
H
19
F
3
N
2
O
2
388.3829696
18
10
0
0
2997773
zoom
C
21
H
19
F
3
N
2
O
2
388.3829696
17
11
0
0
4454326
zoom
C
21
H
19
F
3
N
2
O
2
388.3829696
16
12
0
0
5817115
zoom
C
21
H
19
F
3
N
2
O
2
388.383
16
12
0
0
3342574
zoom
C
21
H
19
F
3
N
2
O
2
388.3829696
15
11
0
0
2406423
zoom
C
21
H
19
F
3
N
2
O
2
388.383
15
9
0
0
2690015
zoom
C
21
H
19
F
3
N
2
O
2
388.3829696
15
10
0
0
18304264
zoom
C
21
H
19
F
3
N
2
O
2
388.383
15
13
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement