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 988 results
Search term:
MF = 'C_{20}H_{15}N_{5}O_{3}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
289407
- 0/1 defined
zoom
C
20
H
15
N
5
O
3
373.3648
51
36
0
0
2112463
- 0/1 defined
zoom
C
20
H
15
N
5
O
3
373.3648
28
20
0
0
2112462
- 0/1 defined
zoom
C
20
H
15
N
5
O
3
373.3648
27
19
0
0
574580
zoom
C
20
H
15
N
5
O
3
373.3648
20
15
0
0
1023914
zoom
C
20
H
15
N
5
O
3
373.3648
19
12
0
0
1700655
zoom
C
20
H
15
N
5
O
3
373.3648
19
14
0
0
3474097
zoom
C
20
H
15
N
5
O
3
373.3648
19
14
0
0
4504009
zoom
C
20
H
15
N
5
O
3
373.3648
19
13
0
0
4660582
zoom
C
20
H
15
N
5
O
3
373.3648
18
11
0
0
4684390
zoom
C
20
H
15
N
5
O
3
373.3648
18
9
0
0
6373743
zoom
C
20
H
15
N
5
O
3
373.3648
18
12
0
0
4463909
zoom
C
20
H
15
N
5
O
3
373.3648
18
12
0
0
1700432
zoom
C
20
H
15
N
5
O
3
373.3648
18
13
0
0
1129833
zoom
C
20
H
15
N
5
O
3
373.3648
18
13
0
0
2224991
- 0/1 defined
zoom
C
20
H
15
N
5
O
3
373.3648
18
14
0
0
34982514
zoom
C
20
H
15
N
5
O
3
373.3648
18
18
0
0
2373168
- 0/2 defined
zoom
C
20
H
15
N
5
O
3
373.3648
17
10
0
0
3471746
zoom
C
20
H
15
N
5
O
3
373.3648
17
12
0
0
17587199
zoom
C
20
H
15
N
5
O
3
373.3648
17
10
0
0
1141064
zoom
C
20
H
15
N
5
O
3
373.3648
16
10
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement