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 37 results
Search term:
MF = 'C_{20}H_{12}N_{2}Na_{2}O_{7}S_{2}'
1
2
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
11588225
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
43
104
0
0
16452611
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
39
39
7
4
16736230
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
33
40
0
0
20155467
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
27
34
0
0
4882012
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
10
11
0
0
7851874
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
10
8
0
0
20155533
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
5
7
0
0
20159642
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
4
4
0
0
4514393
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
4
4
0
0
11588223
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
4
9
63
37
58835429
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
4
3
0
0
7844683
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
4
6
0
0
5219920
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
4
4
0
0
4895528
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
3
4
0
0
92169592
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
3
6
0
0
21171929
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
3
3
1
1
7844574
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
2
2
0
0
7844685
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
2
2
0
0
7850869
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
2
3
0
0
10143680
zoom
C
20
H
12
N
2
Na
2
O
7
S
2
502.428
2
2
0
0
1
2
Advertisement
Advertisement
Spotlight
Advertisement