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 856 results
Search term:
MF = 'C_{21}H_{22}N_{4}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
634647
zoom
C
21
H
22
N
4
330.4262
29
15
0
0
634642
zoom
C
21
H
22
N
4
330.4262
27
14
0
0
4500589
zoom
C
21
H
22
N
4
330.4262
25
13
0
0
825615
zoom
C
21
H
22
N
4
330.4262
24
13
0
0
172251
zoom
C
21
H
22
N
4
330.4262
24
15
0
0
612870
zoom
C
21
H
22
N
4
330.4262
23
15
0
0
765712
zoom
C
21
H
22
N
4
330.4262
23
14
0
0
825611
zoom
C
21
H
22
N
4
330.4262
23
14
0
0
547275
zoom
C
21
H
22
N
4
330.4262
20
14
0
0
605052
zoom
C
21
H
22
N
4
330.4262
20
12
0
0
668622
zoom
C
21
H
22
N
4
330.4262
19
12
0
0
825642
zoom
C
21
H
22
N
4
330.4262
19
12
0
0
2772798
zoom
C
21
H
22
N
4
330.42618
19
12
0
0
4500575
zoom
C
21
H
22
N
4
330.4262
19
13
0
0
5274266
zoom
C
21
H
22
N
4
330.4262
19
12
0
0
5782638
zoom
C
21
H
22
N
4
330.4262
18
12
0
0
11131129
zoom
C
21
H
22
N
4
330.4262
18
11
0
0
4662274
zoom
C
21
H
22
N
4
330.4262
18
13
0
0
4758112
zoom
C
21
H
22
N
4
330.4262
16
8
0
0
605165
zoom
C
21
H
22
N
4
330.4262
15
8
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement