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 74 results
Search term:
MF = 'C_{4}H_{4}N_{2}O_{4}'
1
2
3
4
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
156284
zoom
C
4
H
4
N
2
O
4
144.0856
46
106
0
33
278469
zoom
C
4
H
4
N
2
O
4
144.0856
29
17
0
0
471926
zoom
C
4
H
4
N
2
O
4
144.0856
28
25
0
0
4325643
zoom
C
4
H
4
N
2
O
4
144.08556
20
22
0
0
4346482
zoom
C
4
H
4
N
2
O
4
144.08556
20
15
0
0
476146
- 0/1 defined
zoom
C
4
H
4
N
2
O
4
144.0856
18
19
0
0
61271
zoom
C
4
H
4
N
2
O
4
144.0856
18
26
0
3
122079
zoom
C
4
H
4
N
2
O
4
144.0856
18
18
0
4
9074086
zoom
C
4
H
4
N
2
O
4
144.0856
16
13
0
0
9392373
zoom
C
4
H
4
N
2
O
4
144.0856
15
13
0
0
260032
zoom
C
4
H
4
N
2
O
4
144.0856
15
12
0
0
5680798
zoom
C
4
H
4
N
2
O
4
144.0856
14
10
0
0
14188284
zoom
C
4
H
4
N
2
O
4
144.0856
13
9
0
0
278470
zoom
C
4
H
4
N
2
O
4
144.0856
10
10
0
0
9643965
zoom
C
4
H
4
N
2
O
4
144.0856
8
7
0
0
471508
- 0/1 defined
zoom
C
4
H
4
N
2
O
4
144.0856
7
6
0
0
21783030
zoom
C
4
H
4
N
2
O
4
144.0856
7
3
0
0
21847546
zoom
C
4
H
4
N
2
O
4
144.0856
7
6
0
0
38236618
zoom
C
4
H
4
N
2
O
4
144.0856
7
4
0
0
8233163
- 0/1 defined
zoom
C
4
H
4
N
2
O
4
144.0856
7
7
0
0
1
2
3
4
Advertisement
Advertisement
Spotlight
Advertisement