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 29 results
Search term:
MF = 'C_{20}H_{17}N_{2}O_{2}'
1
2
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
2359017
zoom
C
20
H
17
N
2
O
2
317.36118
10
5
0
0
1304273
zoom
C
20
H
17
N
2
O
2
317.3606
9
4
0
0
1274125
zoom
C
20
H
17
N
2
O
2
317.3606
8
3
0
0
368830
zoom
C
20
H
17
N
2
O
2
317.3606
6
3
0
0
2123390
zoom
C
20
H
17
N
2
O
2
317.36118
5
1
0
0
1303743
zoom
C
20
H
17
N
2
O
2
317.3606
5
2
0
0
4740683
zoom
C
20
H
17
N
2
O
2
317.3606
4
1
0
0
5847139
zoom
C
20
H
17
N
2
O
2
317.3606
3
1
0
0
4810600
zoom
C
20
H
17
N
2
O
2
317.3606
2
2
0
0
3576251
zoom
C
20
H
17
N
2
O
2
317.36118
2
1
0
0
3613808
zoom
C
20
H
17
N
2
O
2
317.36118
2
1
0
0
2948898
zoom
C
20
H
17
N
2
O
2
317.36118
2
1
0
0
3305492
- 0/1 defined
zoom
C
20
H
17
N
2
O
2
317.3606
1
1
0
0
3388993
zoom
C
20
H
17
N
2
O
2
317.36118
1
1
0
0
3388994
zoom
C
20
H
17
N
2
O
2
317.36118
1
1
0
0
4297206
zoom
C
20
H
17
N
2
O
2
317.36118
1
1
0
0
5706475
zoom
C
20
H
17
N
2
O
2
317.3606
1
1
0
0
1838737
zoom
C
20
H
17
N
2
O
2
317.3617
1
1
0
0
2897276
- 0/1 defined
zoom
C
20
H
17
N
2
O
2
317.36118
1
1
0
0
10490776
zoom
C
20
H
17
N
2
O
2
317.3606
1
1
0
0
1
2
Advertisement
Advertisement
Spotlight
Advertisement