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 29166 results
Search term:
MF = 'C_{20}H_{25}N_{3}O_{2}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
7822491
zoom
C
20
H
25
N
3
O
2
339.4314
62
58
0
0
7933
- 3/3 defined
zoom
C
20
H
25
N
3
O
2
339.4314
59
88
262
3
17229610
zoom
C
20
H
25
N
3
O
2
339.4314
54
49
0
0
30646723
zoom
C
20
H
25
N
3
O
2
339.4314
53
48
0
0
2268802
zoom
C
20
H
25
N
3
O
2
339.4314
51
36
0
0
24663034
zoom
C
20
H
25
N
3
O
2
339.4314
35
33
0
0
2857757
zoom
C
20
H
25
N
3
O
2
339.4314
32
24
0
0
648629
zoom
C
20
H
25
N
3
O
2
339.4314
31
21
0
0
728498
zoom
C
20
H
25
N
3
O
2
339.4314
30
19
0
0
728502
zoom
C
20
H
25
N
3
O
2
339.4314
30
17
0
0
830399
zoom
C
20
H
25
N
3
O
2
339.4314
29
15
0
0
1555920
zoom
C
20
H
25
N
3
O
2
339.4314
28
16
0
0
2407489
zoom
C
20
H
25
N
3
O
2
339.4314
26
18
0
0
628030
zoom
C
20
H
25
N
3
O
2
339.4314
26
17
0
0
754336
zoom
C
20
H
25
N
3
O
2
339.4314
26
19
0
0
814587
zoom
C
20
H
25
N
3
O
2
339.4314
26
16
0
0
830274
zoom
C
20
H
25
N
3
O
2
339.4314
26
14
0
0
675521
zoom
C
20
H
25
N
3
O
2
339.4314
25
17
0
0
620729
zoom
C
20
H
25
N
3
O
2
339.4314
25
16
0
0
1581153
zoom
C
20
H
25
N
3
O
2
339.4314
25
25
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement