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 47 results
Search term:
MF = 'C_{20}H_{20}N_{8}O_{5}'
1
2
3
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
4767597
zoom
C
20
H
20
N
8
O
5
452.4234
12
12
0
0
18462243
zoom
C
20
H
20
N
8
O
5
452.4234
11
8
0
0
18462245
zoom
C
20
H
20
N
8
O
5
452.4234
11
8
0
0
9422998
- 1/1 defined
zoom
C
20
H
20
N
8
O
5
452.4234
8
7
0
0
31005473
zoom
C
20
H
20
N
8
O
5
452.4234
6
5
0
0
5217247
zoom
C
20
H
20
N
8
O
5
452.4234
4
3
0
0
21865777
- 1/1 defined
zoom
C
20
H
20
N
8
O
5
452.4245
3
3
0
0
23156682
- 0/1 defined
zoom
C
20
H
20
N
8
O
5
452.4234
3
3
0
0
23234881
- 0/1 defined
zoom
C
20
H
20
N
8
O
5
452.4234
3
3
0
0
23281543
- 0/1 defined
zoom
C
20
H
20
N
8
O
5
452.4234
3
3
0
0
58460993
zoom
C
20
H
20
N
8
O
5
452.4234
2
2
0
0
58461057
zoom
C
20
H
20
N
8
O
5
452.4234
2
2
0
0
58461205
zoom
C
20
H
20
N
8
O
5
452.4234
2
2
0
0
58489532
zoom
C
20
H
20
N
8
O
5
452.4234
2
2
0
0
64871978
zoom
C
20
H
20
N
8
O
5
452.4234
2
1
0
0
66012137
zoom
C
20
H
20
N
8
O
5
452.4234
2
1
0
0
66176661
- 0/1 defined
zoom
C
20
H
20
N
8
O
5
452.4234
2
1
0
0
66176962
- 0/2 defined
zoom
C
20
H
20
N
8
O
5
452.4234
2
1
0
0
67094795
zoom
C
20
H
20
N
8
O
5
452.4234
2
1
0
0
67095147
zoom
C
20
H
20
N
8
O
5
452.4234
2
1
0
0
1
2
3
Advertisement
Advertisement
Spotlight
Advertisement