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 747 results
Search term:
MF = 'C_{20}H_{16}N_{2}O'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
39774
zoom
C
20
H
16
N
2
O
300.3538
37
29
0
0
591052
zoom
C
20
H
16
N
2
O
300.3538
32
22
0
0
25800812
zoom
C
20
H
16
N
2
O
300.3538
30
22
0
0
771893
zoom
C
20
H
16
N
2
O
300.3538
29
25
0
0
820260
zoom
C
20
H
16
N
2
O
300.3538
27
24
0
0
3902682
zoom
C
20
H
16
N
2
O
300.3538
27
20
0
0
7854152
zoom
C
20
H
16
N
2
O
300.3538
27
17
0
0
222945
zoom
C
20
H
16
N
2
O
300.3538
26
18
0
0
2927213
zoom
C
20
H
16
N
2
O
300.35384
24
26
0
0
1228161
zoom
C
20
H
16
N
2
O
300.3538
24
26
0
0
620418
zoom
C
20
H
16
N
2
O
300.3538
24
15
0
0
48156
zoom
C
20
H
16
N
2
O
300.3538
24
17
0
0
48168
zoom
C
20
H
16
N
2
O
300.3538
23
17
0
0
3408050
- 0/1 defined
zoom
C
20
H
16
N
2
O
300.35384
23
10
0
0
3547156
zoom
C
20
H
16
N
2
O
300.35384
23
18
0
0
1228922
zoom
C
20
H
16
N
2
O
300.3538
23
25
0
0
2418341
- 0/1 defined
zoom
C
20
H
16
N
2
O
300.3538
23
18
0
0
4833593
zoom
C
20
H
16
N
2
O
300.3538
23
20
0
0
75533908
zoom
C
20
H
16
N
2
O
300.3538
23
29
0
0
1228185
zoom
C
20
H
16
N
2
O
300.3538
22
22
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement