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 18627 results
Search term:
MF = 'C_{19}H_{20}N_{2}O_{2}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
4617
zoom
C
19
H
20
N
2
O
2
308.3743
174
3397
102
13277
4470526
zoom
C
19
H
20
N
2
O
2
308.3743
56
52
0
0
489974
zoom
C
19
H
20
N
2
O
2
308.3743
49
33
0
0
2037203
- 0/1 defined
zoom
C
19
H
20
N
2
O
2
308.3743
47
33
0
0
3236027
zoom
C
19
H
20
N
2
O
2
308.3743
45
41
0
0
2112445
- 0/1 defined
zoom
C
19
H
20
N
2
O
2
308.3743
41
27
0
0
3000010
- 0/1 defined
zoom
C
19
H
20
N
2
O
2
308.3743
38
31
0
0
7993830
zoom
C
19
H
20
N
2
O
2
308.3743
38
26
0
0
2010720
- 0/1 defined
zoom
C
19
H
20
N
2
O
2
308.3743
36
35
0
0
2506732
- 0/6 defined
zoom
C
19
H
20
N
2
O
2
308.3743
36
27
0
0
482978
zoom
C
19
H
20
N
2
O
2
308.3743
36
25
0
0
2164141
- 0/1 defined
zoom
C
19
H
20
N
2
O
2
308.3743
34
20
0
0
23954495
- 0/1 defined
zoom
C
19
H
20
N
2
O
2
308.3743
34
18
0
0
2158208
- 0/1 defined
zoom
C
19
H
20
N
2
O
2
308.3743
32
20
0
0
12542668
zoom
C
19
H
20
N
2
O
2
308.3743
31
24
0
0
676270
zoom
C
19
H
20
N
2
O
2
308.3743
31
19
0
0
766959
zoom
C
19
H
20
N
2
O
2
308.3743
31
17
0
0
1689973
zoom
C
19
H
20
N
2
O
2
308.3743
30
23
0
0
488944
- 0/1 defined
zoom
C
19
H
20
N
2
O
2
308.3743
30
21
0
0
2116428
- 0/1 defined
zoom
C
19
H
20
N
2
O
2
308.3743
30
22
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement