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 4006 results
Search term:
MF = 'C_{21}H_{23}N_{5}O_{3}S'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
28189566
zoom
C
21
H
23
N
5
O
3
S
425.504
78
79
0
0
1269911
zoom
C
21
H
23
N
5
O
3
S
425.504
28
20
0
0
1460475
zoom
C
21
H
23
N
5
O
3
S
425.504
26
20
0
0
1540650
zoom
C
21
H
23
N
5
O
3
S
425.504
25
21
0
0
2166419
zoom
C
21
H
23
N
5
O
3
S
425.50402
25
13
0
0
2217857
- 0/1 defined
zoom
C
21
H
23
N
5
O
3
S
425.50402
24
16
0
0
2159943
zoom
C
21
H
23
N
5
O
3
S
425.50402
24
16
0
0
1244051
zoom
C
21
H
23
N
5
O
3
S
425.504
24
15
0
0
1428982
zoom
C
21
H
23
N
5
O
3
S
425.504
22
18
0
0
1086349
zoom
C
21
H
23
N
5
O
3
S
425.504
22
17
0
0
1098549
zoom
C
21
H
23
N
5
O
3
S
425.504
22
14
0
0
1460558
zoom
C
21
H
23
N
5
O
3
S
425.504
22
18
0
0
5264420
zoom
C
21
H
23
N
5
O
3
S
425.504
22
14
0
0
7859519
- 0/1 defined
zoom
C
21
H
23
N
5
O
3
S
425.504
21
19
0
0
1636531
zoom
C
21
H
23
N
5
O
3
S
425.504
21
15
0
0
2230844
- 0/1 defined
zoom
C
21
H
23
N
5
O
3
S
425.50402
21
14
0
0
2408560
- 0/1 defined
zoom
C
21
H
23
N
5
O
3
S
425.504
21
14
0
0
1424979
zoom
C
21
H
23
N
5
O
3
S
425.504
21
14
0
0
1460497
zoom
C
21
H
23
N
5
O
3
S
425.504
21
22
0
0
5274848
zoom
C
21
H
23
N
5
O
3
S
425.504
20
15
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement