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 39 results
Search term:
MF = 'C_{5}H_{4}O_{2}'
1
2
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
13863629
zoom
C
5
H
4
O
2
96.0841
152
725
1096
2039
9924
zoom
C
5
H
4
O
2
96.0841
127
125
12
32
61462
zoom
C
5
H
4
O
2
96.0841
96
276
920
2003
7680
zoom
C
5
H
4
O
2
96.0841
90
123
130
217
60307
zoom
C
5
H
4
O
2
96.0841
73
117
47
103
63443
zoom
C
5
H
4
O
2
96.0841
71
87
11
26
110878
zoom
C
5
H
4
O
2
96.0841
13
23
0
0
124349
- 0/2 defined
zoom
C
5
H
4
O
2
96.0841
12
13
0
1
161397
zoom
C
5
H
4
O
2
96.0841
12
21
1
4
26667406
zoom
C
5
H
4
O
2
96.0841
8
8
0
0
9484443
zoom
C
5
H
4
O
2
96.0841
7
9
0
0
10371947
- 0/2 defined
zoom
C
5
H
4
O
2
96.0841
6
7
0
0
10466914
zoom
C
5
H
4
O
2
96.0841
5
6
0
0
5602510
zoom
C
5
H
4
O
2
96.0841
5
4
0
0
26538486
zoom
C
5
H
4
O
2
96.08406
5
5
0
0
57513164
zoom
C
5
H
4
O
2
96.0841
4
5
0
0
60823402
zoom
C
5
H
4
O
2
96.0841
4
3
0
0
9208612
- 0/1 defined
zoom
C
5
H
4
O
2
96.0841
3
3
0
0
123908
- 0/4 defined
zoom
C
5
H
4
O
2
96.0841
3
3
0
0
61474910
- 1/1 defined
zoom
C
5
H
4
O
2
96.0841
2
2
0
0
1
2
Advertisement
Advertisement
Spotlight
Advertisement