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 20 results
Search term:
MF = 'C_{21}H_{12}Cl_{2}N_{6}O'
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
28424190
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
15
12
0
0
28487066
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
4
4
0
0
28489054
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
3
3
0
0
75807868
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
75807897
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
75807922
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
75810720
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
75810721
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
75810737
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
75810833
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
75821851
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
75821852
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
75821867
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
75821965
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
82976597
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
101272346
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
101272348
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
101274227
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
101274336
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
17231516
zoom
C
21
H
12
Cl
2
N
6
O
435.2656
1
1
0
0
Advertisement
Advertisement
Spotlight
Advertisement