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 658 results
Search term:
MF = 'C_{25}H_{21}F_{2}N_{3}O_{3}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
4457021
- 0/1 defined
zoom
C
25
H
21
F
2
N
3
O
3
449.4493464
19
14
0
0
3962530
- 0/1 defined
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
18
14
0
0
17520611
- 0/1 defined
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
16
14
0
0
17517734
- 0/1 defined
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
15
11
0
0
18474814
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
13
10
0
0
21584170
- 0/1 defined
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
11
10
0
0
1184444
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
11
6
0
0
4785677
- 0/1 defined
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
11
9
0
0
11005189
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
11
7
0
0
1756515
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
10
8
0
0
23007415
- 0/1 defined
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
10
7
0
0
20757687
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
10
8
0
0
20757688
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
10
8
0
0
20757689
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
10
8
0
0
20757806
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
10
8
0
0
20757807
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
10
8
0
0
20757808
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
10
8
0
0
23057325
- 0/1 defined
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
9
9
0
0
20376068
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
9
7
0
0
11115536
zoom
C
25
H
21
F
2
N
3
O
3
449.4493
9
6
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement