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 527 results
Search term:
MF = 'C_{21}H_{17}Cl_{2}NO_{2}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
8040651
zoom
C
21
H
17
Cl
2
NO
2
386.2712
46
41
0
0
3370710
zoom
C
21
H
17
Cl
2
NO
2
386.27118
25
25
0
0
857062
zoom
C
21
H
17
Cl
2
NO
2
386.2712
23
15
0
0
861240
zoom
C
21
H
17
Cl
2
NO
2
386.2712
23
15
0
0
1102132
zoom
C
21
H
17
Cl
2
NO
2
386.2712
22
15
0
0
1411351
zoom
C
21
H
17
Cl
2
NO
2
386.2712
22
14
0
0
1510573
zoom
C
21
H
17
Cl
2
NO
2
386.2712
22
15
0
0
1619838
zoom
C
21
H
17
Cl
2
NO
2
386.2712
22
16
0
0
1656513
zoom
C
21
H
17
Cl
2
NO
2
386.2712
20
13
0
0
1811432
zoom
C
21
H
17
Cl
2
NO
2
386.2712
20
14
0
0
4307432
- 0/1 defined
zoom
C
21
H
17
Cl
2
NO
2
386.27118
19
11
0
0
5285953
zoom
C
21
H
17
Cl
2
NO
2
386.2712
19
19
0
0
1643766
zoom
C
21
H
17
Cl
2
NO
2
386.2712
19
12
0
0
1643865
zoom
C
21
H
17
Cl
2
NO
2
386.2712
19
12
0
0
1219141
zoom
C
21
H
17
Cl
2
NO
2
386.2712
19
16
0
0
2753776
zoom
C
21
H
17
Cl
2
NO
2
386.27118
18
16
0
0
2824848
zoom
C
21
H
17
Cl
2
NO
2
386.27118
18
15
0
0
17992945
zoom
C
21
H
17
Cl
2
NO
2
386.2712
18
23
0
0
2955027
zoom
C
21
H
17
Cl
2
NO
2
386.27118
17
15
0
0
12516486
- 0/2 defined
zoom
C
21
H
17
Cl
2
NO
2
386.2712
17
12
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement