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 1422 results
Search term:
MF = 'C_{20}H_{20}O_{4}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
110560
- 1/1 defined
zoom
C
20
H
20
O
4
324.3704
97
134
0
0
4444667
zoom
C
20
H
20
O
4
324.3704
82
88
0
0
110558
- 1/1 defined
zoom
C
20
H
20
O
4
324.3704
55
46
0
0
4953423
zoom
C
20
H
20
O
4
324.3704
52
46
0
0
23327376
- 1/1 defined
zoom
C
20
H
20
O
4
324.3704
49
49
0
0
96396
- 0/1 defined
zoom
C
20
H
20
O
4
324.3704
48
37
0
0
106541
- 2/2 defined
zoom
C
20
H
20
O
4
324.3704
47
51
0
0
168078
- 1/1 defined
zoom
C
20
H
20
O
4
324.3704
43
45
0
0
4945284
- 2/2 defined
zoom
C
20
H
20
O
4
324.3704
37
36
0
0
301556
zoom
C
20
H
20
O
4
324.3704
33
24
0
0
611901
zoom
C
20
H
20
O
4
324.3704
32
19
0
0
736678
zoom
C
20
H
20
O
4
324.3704
32
16
0
0
2397096
- 0/1 defined
zoom
C
20
H
20
O
4
324.3704
32
35
4
0
4479440
- 0/1 defined
zoom
C
20
H
20
O
4
324.3704
31
33
0
0
4582427
zoom
C
20
H
20
O
4
324.3704
29
27
0
0
9784265
- 0/1 defined
zoom
C
20
H
20
O
4
324.3704
28
26
0
0
773546
zoom
C
20
H
20
O
4
324.3704
27
16
0
0
773660
zoom
C
20
H
20
O
4
324.3704
27
14
0
0
773743
zoom
C
20
H
20
O
4
324.3704
27
15
0
0
609074
zoom
C
20
H
20
O
4
324.3704
27
16
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement