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 1959 results
Search term:
MF = 'C_{21}H_{19}FN_{2}O_{3}S'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
874885
zoom
C
21
H
19
FN
2
O
3
S
398.4506
29
21
0
0
875576
zoom
C
21
H
19
FN
2
O
3
S
398.4506
28
17
0
0
876553
zoom
C
21
H
19
FN
2
O
3
S
398.4506
27
18
0
0
859836
zoom
C
21
H
19
FN
2
O
3
S
398.4506
25
17
0
0
964441
zoom
C
21
H
19
FN
2
O
3
S
398.4506
25
16
0
0
2210817
zoom
C
21
H
19
FN
2
O
3
S
398.4505632
24
15
0
0
1019848
zoom
C
21
H
19
FN
2
O
3
S
398.4506
24
18
0
0
864583
zoom
C
21
H
19
FN
2
O
3
S
398.4506
24
16
0
0
937567
zoom
C
21
H
19
FN
2
O
3
S
398.4506
24
16
0
0
945388
zoom
C
21
H
19
FN
2
O
3
S
398.4506
23
17
0
0
1042706
zoom
C
21
H
19
FN
2
O
3
S
398.4506
23
16
0
0
1617578
zoom
C
21
H
19
FN
2
O
3
S
398.4506
23
15
0
0
2244197
zoom
C
21
H
19
FN
2
O
3
S
398.4505632
23
17
0
0
3472899
zoom
C
21
H
19
FN
2
O
3
S
398.4505632
23
14
0
0
976904
zoom
C
21
H
19
FN
2
O
3
S
398.4506
23
17
0
0
976902
zoom
C
21
H
19
FN
2
O
3
S
398.4506
22
14
0
0
1644702
zoom
C
21
H
19
FN
2
O
3
S
398.4506
22
15
0
0
853255
zoom
C
21
H
19
FN
2
O
3
S
398.4506
22
15
0
0
853292
zoom
C
21
H
19
FN
2
O
3
S
398.4506
21
14
0
0
869854
zoom
C
21
H
19
FN
2
O
3
S
398.4506
21
14
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement