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 882 results
Search term:
MF = 'C_{23}H_{20}N_{4}O_{3}S_{2}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
2236067
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
36
28
0
0
4502813
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
24
15
0
0
1658817
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
21
13
0
0
1084075
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
20
15
0
0
2236247
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
20
11
0
0
4691175
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
20
14
0
0
7920511
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
18
8
0
0
12232302
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
18
11
0
0
2392912
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
18
12
0
0
1296328
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
18
17
0
0
1896924
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
17
12
0
0
12232339
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
17
10
0
0
12554567
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
17
12
0
0
10010533
- 0/1 defined
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
17
14
0
0
4827922
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
17
12
0
0
4459352
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
17
15
0
0
22280593
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
17
12
0
0
17958757
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
16
11
0
0
12276700
- 0/1 defined
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
16
10
0
0
3483469
zoom
C
23
H
20
N
4
O
3
S
2
464.5599
16
12
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement