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 14799 results
Search term:
MF = 'C_{20}H_{26}N_{4}O_{3}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
27457669
zoom
C
20
H
26
N
4
O
3
370.4454
46
22
0
0
542419
zoom
C
20
H
26
N
4
O
3
370.4454
29
17
0
0
3038033
- 0/1 defined
zoom
C
20
H
26
N
4
O
3
370.44544
25
17
0
0
2131179
zoom
C
20
H
26
N
4
O
3
370.44544
24
13
0
0
2124356
- 0/2 defined
zoom
C
20
H
26
N
4
O
3
370.44544
23
17
0
0
12214358
zoom
C
20
H
26
N
4
O
3
370.4454
22
16
0
0
1393099
zoom
C
20
H
26
N
4
O
3
370.4454
21
14
0
0
1452341
zoom
C
20
H
26
N
4
O
3
370.4454
21
11
0
0
2180070
- 0/1 defined
zoom
C
20
H
26
N
4
O
3
370.44544
20
16
0
0
4090763
zoom
C
20
H
26
N
4
O
3
370.44544
20
13
0
0
4153338
zoom
C
20
H
26
N
4
O
3
370.44544
19
13
0
0
3559527
zoom
C
20
H
26
N
4
O
3
370.44544
19
12
0
0
12214363
zoom
C
20
H
26
N
4
O
3
370.4454
19
13
0
0
30748096
- 0/1 defined
zoom
C
20
H
26
N
4
O
3
370.4454
19
17
0
0
2474228
zoom
C
20
H
26
N
4
O
3
370.4454
19
12
0
0
1498496
zoom
C
20
H
26
N
4
O
3
370.4454
19
13
0
0
1262976
zoom
C
20
H
26
N
4
O
3
370.4454
19
16
0
0
4964157
zoom
C
20
H
26
N
4
O
3
370.4454
19
13
0
0
1488104
zoom
C
20
H
26
N
4
O
3
370.4454
18
13
0
0
4535585
zoom
C
20
H
26
N
4
O
3
370.4454
18
16
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement