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 33 results
Search term:
MF = 'C_{20}H_{18}ClF_{2}N_{5}O_{3}'
1
2
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
52085218
- 1/1 defined
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
35
39
0
0
67178433
- 1/1 defined
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
16
17
0
0
64880061
- 0/1 defined
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
12
16
0
0
28371784
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
7
6
0
0
28371924
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
7
6
0
0
4587754
- 2/2 defined
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
6
5
0
0
8022276
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
6
4
0
0
28371761
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
6
5
0
0
76719786
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
3
3
0
0
76730714
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
2
2
0
0
76806389
- 1/1 defined
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
2
2
0
0
76810784
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
2
2
0
0
76816831
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
2
2
0
0
76824419
- 3/3 defined
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
2
2
0
0
9114535
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
2
1
0
0
76717646
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
2
2
0
0
70198597
- 0/1 defined
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
1
1
0
0
123099339
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
1
1
0
0
129008735
- 3/3 defined
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
1
1
0
0
129008747
- 3/3 defined
zoom
C
20
H
18
ClF
2
N
5
O
3
449.8384
1
1
0
0
1
2
Advertisement
Advertisement
Spotlight
Advertisement