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 11440 results
Search term:
MF = 'C_{18}H_{18}N_{4}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
72333
zoom
C
18
H
18
N
4
290.3623
95
79
0
0
336061
zoom
C
18
H
18
N
4
290.3623
78
216
137
209
9740289
zoom
C
18
H
18
N
4
290.3623
78
58
0
0
173112
zoom
C
18
H
18
N
4
290.3623
44
35
0
0
26519529
zoom
C
18
H
18
N
4
290.3623
38
30
0
0
3039151
zoom
C
18
H
18
N
4
290.36232
30
26
0
0
1735698
zoom
C
18
H
18
N
4
290.3623
29
20
0
0
2992320
zoom
C
18
H
18
N
4
290.36232
29
19
0
0
643078
zoom
C
18
H
18
N
4
290.3623
29
17
0
0
717150
zoom
C
18
H
18
N
4
290.3623
25
14
0
0
720445
zoom
C
18
H
18
N
4
290.3623
24
14
0
0
562204
zoom
C
18
H
18
N
4
290.3623
24
15
0
0
4914799
zoom
C
18
H
18
N
4
290.3623
24
23
0
0
20558154
zoom
C
18
H
18
N
4
290.3623
23
18
0
0
592224
zoom
C
18
H
18
N
4
290.3623
22
13
0
0
724429
zoom
C
18
H
18
N
4
290.3623
22
14
0
0
4922361
zoom
C
18
H
18
N
4
290.3623
21
13
0
0
5465137
zoom
C
18
H
18
N
4
290.3623
21
13
0
0
2953007
zoom
C
18
H
18
N
4
290.36232
21
21
2
6
5465136
zoom
C
18
H
18
N
4
290.3623
20
12
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement