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 5475 results
Search term:
MF = 'C_{18}H_{20}ClN_{3}O_{3}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
9752638
zoom
C
18
H
20
ClN
3
O
3
361.8227
35
40
0
0
974749
zoom
C
18
H
20
ClN
3
O
3
361.8227
32
20
0
0
28540280
- 1/1 defined
zoom
C
18
H
20
ClN
3
O
3
361.8227
31
12
0
0
2266840
zoom
C
18
H
20
ClN
3
O
3
361.8227
26
18
0
0
2267102
zoom
C
18
H
20
ClN
3
O
3
361.8227
25
16
0
0
1108110
zoom
C
18
H
20
ClN
3
O
3
361.8227
24
16
0
0
1668972
zoom
C
18
H
20
ClN
3
O
3
361.8227
24
17
0
0
20710509
zoom
C
18
H
20
ClN
3
O
3
361.8227
24
15
0
0
20710570
zoom
C
18
H
20
ClN
3
O
3
361.8227
24
15
0
0
510866
zoom
C
18
H
20
ClN
3
O
3
361.8227
24
16
0
0
2162889
zoom
C
18
H
20
ClN
3
O
3
361.8227
23
15
0
0
2130494
zoom
C
18
H
20
ClN
3
O
3
361.8227
22
14
0
0
1415444
zoom
C
18
H
20
ClN
3
O
3
361.8227
22
14
0
0
4972394
zoom
C
18
H
20
ClN
3
O
3
361.8227
22
19
0
0
4999092
zoom
C
18
H
20
ClN
3
O
3
361.8227
21
16
0
0
5002399
zoom
C
18
H
20
ClN
3
O
3
361.8227
20
10
0
0
4971812
zoom
C
18
H
20
ClN
3
O
3
361.8227
20
16
0
0
22001598
zoom
C
18
H
20
ClN
3
O
3
361.8227
19
13
0
0
4798404
zoom
C
18
H
20
ClN
3
O
3
361.8227
18
11
0
0
2264162
zoom
C
18
H
20
ClN
3
O
3
361.8227
17
12
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement