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 1485 results
Search term:
MF = 'C_{20}H_{20}O_{5}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
444597
- 0/1 defined
zoom
C
20
H
20
O
5
340.3698
58
117
0
0
421848
- 1/1 defined
zoom
C
20
H
20
O
5
340.3698
50
52
0
0
4947362
zoom
C
20
H
20
O
5
340.3698
45
51
0
0
793573
zoom
C
20
H
20
O
5
340.3698
42
30
0
0
136636
- 1/1 defined
zoom
C
20
H
20
O
5
340.3698
40
38
0
0
8038465
zoom
C
20
H
20
O
5
340.3698
40
38
7
0
2028895
- 0/1 defined
zoom
C
20
H
20
O
5
340.3698
39
31
0
0
2759246
- 0/1 defined
zoom
C
20
H
20
O
5
340.3698
38
58
0
0
390852
- 2/2 defined
zoom
C
20
H
20
O
5
340.3698
37
32
0
0
642101
zoom
C
20
H
20
O
5
340.3698
28
17
0
0
439849
zoom
C
20
H
20
O
5
340.3698
27
24
0
0
1468461
zoom
C
20
H
20
O
5
340.3698
27
17
0
0
2114381
- 0/1 defined
zoom
C
20
H
20
O
5
340.3698
26
17
0
0
1274227
zoom
C
20
H
20
O
5
340.3698
26
14
0
0
566702
zoom
C
20
H
20
O
5
340.3698
26
17
0
0
723497
zoom
C
20
H
20
O
5
340.3698
25
13
0
0
144118
- 0/2 defined
zoom
C
20
H
20
O
5
340.3698
25
18
0
0
824159
zoom
C
20
H
20
O
5
340.3698
25
14
0
0
1470471
zoom
C
20
H
20
O
5
340.3698
25
12
0
0
600174
zoom
C
20
H
20
O
5
340.3698
24
16
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement