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 2038 results
Search term:
MF = 'C_{18}H_{14}N_{4}O_{3}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
24595200
zoom
C
18
H
14
N
4
O
3
334.3288
35
31
0
0
575297
zoom
C
18
H
14
N
4
O
3
334.3288
26
18
0
0
2408504
- 0/1 defined
zoom
C
18
H
14
N
4
O
3
334.3288
26
18
0
0
579949
zoom
C
18
H
14
N
4
O
3
334.3288
24
14
0
0
1244072
zoom
C
18
H
14
N
4
O
3
334.3288
24
20
0
0
5020204
zoom
C
18
H
14
N
4
O
3
334.3288
23
15
0
0
800031
zoom
C
18
H
14
N
4
O
3
334.3288
22
14
0
0
2241814
zoom
C
18
H
14
N
4
O
3
334.32876
21
15
0
0
580446
zoom
C
18
H
14
N
4
O
3
334.3288
21
13
0
0
653498
zoom
C
18
H
14
N
4
O
3
334.3288
21
12
0
0
11584471
zoom
C
18
H
14
N
4
O
3
334.3288
21
22
0
0
844708
zoom
C
18
H
14
N
4
O
3
334.3288
21
17
0
0
17482859
zoom
C
18
H
14
N
4
O
3
334.3288
20
14
0
0
21266739
zoom
C
18
H
14
N
4
O
3
334.3288
20
13
0
0
4537992
zoom
C
18
H
14
N
4
O
3
334.3288
20
13
0
0
5261526
zoom
C
18
H
14
N
4
O
3
334.3288
20
16
0
0
818258
zoom
C
18
H
14
N
4
O
3
334.3288
20
14
0
0
5269405
zoom
C
18
H
14
N
4
O
3
334.3288
19
15
0
0
5281953
zoom
C
18
H
14
N
4
O
3
334.3288
19
12
0
0
4648842
zoom
C
18
H
14
N
4
O
3
334.3288
19
11
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement