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 833 results
Search term:
MF = 'C_{21}H_{27}N_{5}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
9431613
- 1/1 defined
zoom
C
21
H
27
N
5
349.4726
65
57
0
0
824252
zoom
C
21
H
27
N
5
349.4726
33
20
0
0
8301538
- 0/1 defined
zoom
C
21
H
27
N
5
349.4726
28
24
0
0
2837488
zoom
C
21
H
27
N
5
349.47258
23
14
0
0
1501652
zoom
C
21
H
27
N
5
349.4726
23
15
0
0
1501693
zoom
C
21
H
27
N
5
349.4726
22
14
0
0
1485725
zoom
C
21
H
27
N
5
349.4726
22
14
0
0
747321
zoom
C
21
H
27
N
5
349.4726
22
11
0
0
814844
zoom
C
21
H
27
N
5
349.4726
22
13
0
0
1493717
zoom
C
21
H
27
N
5
349.4726
22
14
0
0
2411059
zoom
C
21
H
27
N
5
349.4726
21
11
0
0
4089315
zoom
C
21
H
27
N
5
349.47258
21
13
0
0
4093870
zoom
C
21
H
27
N
5
349.47258
21
12
0
0
1490316
zoom
C
21
H
27
N
5
349.4726
20
13
0
0
21075442
zoom
C
21
H
27
N
5
349.4726
18
12
0
0
1195369
zoom
C
21
H
27
N
5
349.4726
17
11
0
0
1532435
zoom
C
21
H
27
N
5
349.4726
16
10
0
0
6374300
zoom
C
21
H
27
N
5
349.4726
16
12
0
0
2772241
zoom
C
21
H
27
N
5
349.47258
16
15
0
0
12903883
zoom
C
21
H
27
N
5
349.4726
16
10
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement