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 497 results
Search term:
MF = 'C_{20}H_{25}N_{3}S'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
4582
zoom
C
20
H
25
N
3
S
339.4976
63
214
180
225
780190
zoom
C
20
H
25
N
3
S
339.4976
29
20
0
0
780232
zoom
C
20
H
25
N
3
S
339.4976
28
21
0
0
637441
zoom
C
20
H
25
N
3
S
339.4976
28
17
0
0
1447814
zoom
C
20
H
25
N
3
S
339.4976
27
20
0
0
696479
zoom
C
20
H
25
N
3
S
339.4976
26
18
0
0
779546
zoom
C
20
H
25
N
3
S
339.4976
26
20
0
0
842271
zoom
C
20
H
25
N
3
S
339.4976
25
17
0
0
1674182
zoom
C
20
H
25
N
3
S
339.4976
24
15
0
0
750695
zoom
C
20
H
25
N
3
S
339.4976
24
19
0
0
764180
zoom
C
20
H
25
N
3
S
339.4976
22
16
0
0
1639672
zoom
C
20
H
25
N
3
S
339.4976
21
15
0
0
1378198
zoom
C
20
H
25
N
3
S
339.4976
21
15
0
0
774426
zoom
C
20
H
25
N
3
S
339.4976
20
14
0
0
774602
zoom
C
20
H
25
N
3
S
339.4976
18
13
0
0
705059
zoom
C
20
H
25
N
3
S
339.4976
18
13
0
0
1770635
zoom
C
20
H
25
N
3
S
339.4976
16
11
0
0
3265868
- 0/1 defined
zoom
C
20
H
25
N
3
S
339.4976
16
12
0
0
1839731
zoom
C
20
H
25
N
3
S
339.4976
15
10
0
0
653322
zoom
C
20
H
25
N
3
S
339.4976
15
10
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement