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 1881 results
Search term:
MF = 'C_{21}H_{27}N_{5}OS'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
1061107
zoom
C
21
H
27
N
5
OS
397.537
23
18
0
0
912422
zoom
C
21
H
27
N
5
OS
397.537
21
14
0
0
12267057
zoom
C
21
H
27
N
5
OS
397.537
19
13
0
0
4732067
- 0/1 defined
zoom
C
21
H
27
N
5
OS
397.537
19
11
0
0
4808196
- 0/1 defined
zoom
C
21
H
27
N
5
OS
397.537
19
11
0
0
10491128
zoom
C
21
H
27
N
5
OS
397.537
18
17
0
0
21262852
zoom
C
21
H
27
N
5
OS
397.537
18
13
0
0
857831
zoom
C
21
H
27
N
5
OS
397.537
17
14
0
0
1463396
zoom
C
21
H
27
N
5
OS
397.537
17
11
0
0
2467596
zoom
C
21
H
27
N
5
OS
397.537
17
13
0
0
2467597
- 0/2 defined
zoom
C
21
H
27
N
5
OS
397.537
17
13
0
0
2810670
- 0/4 defined
zoom
C
21
H
27
N
5
OS
397.53698
17
11
0
0
2938714
zoom
C
21
H
27
N
5
OS
397.53698
16
10
0
0
1506074
zoom
C
21
H
27
N
5
OS
397.537
16
10
0
0
564600
zoom
C
21
H
27
N
5
OS
397.537
16
8
0
0
12905017
zoom
C
21
H
27
N
5
OS
397.537
16
9
0
0
2299711
zoom
C
21
H
27
N
5
OS
397.53698
15
14
0
0
2946698
zoom
C
21
H
27
N
5
OS
397.53698
15
10
0
0
2984527
zoom
C
21
H
27
N
5
OS
397.53698
15
10
0
0
3046541
zoom
C
21
H
27
N
5
OS
397.53698
15
10
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement