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 464 results
Search term:
MF = 'C_{21}H_{15}N_{3}O'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
4493511
zoom
C
21
H
15
N
3
O
325.3633
33
28
0
0
677770
zoom
C
21
H
15
N
3
O
325.3633
31
17
0
0
12197221
zoom
C
21
H
15
N
3
O
325.3633
28
20
0
0
609679
zoom
C
21
H
15
N
3
O
325.3633
27
15
0
0
626655
zoom
C
21
H
15
N
3
O
325.3633
26
16
0
0
816130
zoom
C
21
H
15
N
3
O
325.3633
25
16
0
0
5267982
zoom
C
21
H
15
N
3
O
325.3633
25
19
0
0
827486
zoom
C
21
H
15
N
3
O
325.3633
24
18
0
0
687676
zoom
C
21
H
15
N
3
O
325.3633
24
17
0
0
635211
zoom
C
21
H
15
N
3
O
325.3633
23
18
0
0
4491885
zoom
C
21
H
15
N
3
O
325.3633
23
12
0
0
11101504
zoom
C
21
H
15
N
3
O
325.3633
22
15
0
0
3775245
zoom
C
21
H
15
N
3
O
325.3633
22
12
0
0
116181
zoom
C
21
H
15
N
3
O
325.3633
21
17
0
0
3662835
- 0/1 defined
zoom
C
21
H
15
N
3
O
325.3633
21
14
0
0
11350990
zoom
C
21
H
15
N
3
O
325.3633
21
20
0
0
5270945
zoom
C
21
H
15
N
3
O
325.3633
21
16
0
0
4674463
zoom
C
21
H
15
N
3
O
325.3633
21
18
0
0
4491924
zoom
C
21
H
15
N
3
O
325.3633
20
17
0
0
4670947
zoom
C
21
H
15
N
3
O
325.3633
20
11
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement