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 17001 results
Search term:
MF = 'C_{18}H_{18}N_{2}O_{3}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
4486261
zoom
C
18
H
18
N
2
O
3
310.3471
99
114
0
0
88381
- 0/1 defined
zoom
C
18
H
18
N
2
O
3
310.3471
77
78
0
0
24680556
zoom
C
18
H
18
N
2
O
3
310.3471
59
39
0
0
2017192
- 0/1 defined
zoom
C
18
H
18
N
2
O
3
310.34712
52
37
0
0
28535053
zoom
C
18
H
18
N
2
O
3
310.3471
45
29
0
0
28535633
zoom
C
18
H
18
N
2
O
3
310.3471
45
28
0
0
4774735
zoom
C
18
H
18
N
2
O
3
310.3471
44
35
0
0
28535721
zoom
C
18
H
18
N
2
O
3
310.3471
43
27
0
0
2271272
- 0/1 defined
zoom
C
18
H
18
N
2
O
3
310.34712
42
25
0
0
429920
zoom
C
18
H
18
N
2
O
3
310.3471
41
35
0
0
10567032
zoom
C
18
H
18
N
2
O
3
310.3471
40
26
0
0
619380
zoom
C
18
H
18
N
2
O
3
310.3471
39
22
0
0
4925465
zoom
C
18
H
18
N
2
O
3
310.3471
39
45
0
0
21805036
zoom
C
18
H
18
N
2
O
3
310.3471
35
21
0
0
1548120
- 1/1 defined
zoom
C
18
H
18
N
2
O
3
310.3471
34
28
1
1
2053217
zoom
C
18
H
18
N
2
O
3
310.34712
34
22
0
0
657822
zoom
C
18
H
18
N
2
O
3
310.3471
34
21
0
0
727672
zoom
C
18
H
18
N
2
O
3
310.3471
33
21
0
0
21762433
zoom
C
18
H
18
N
2
O
3
310.3471
33
27
0
0
651873
zoom
C
18
H
18
N
2
O
3
310.3471
32
25
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement