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 11905 results
Search term:
MF = 'C_{14}H_{21}NO_{4}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
3551450
zoom
C
14
H
21
NO
4
267.3208
101
57
0
0
11938
zoom
C
14
H
21
NO
4
267.3208
99
207
0
0
257434
zoom
C
14
H
21
NO
4
267.3208
99
52
0
0
82840
zoom
C
14
H
21
NO
4
267.3208
81
131
28
3
257435
zoom
C
14
H
21
NO
4
267.3208
57
43
0
0
56653
- 0/1 defined
zoom
C
14
H
21
NO
4
267.3208
57
90
0
0
21169981
- 1/1 defined
zoom
C
14
H
21
NO
4
267.3208
48
41
0
0
85958
zoom
C
14
H
21
NO
4
267.3208
45
33
0
0
3626975
- 0/1 defined
zoom
C
14
H
21
NO
4
267.32084
43
33
0
0
486716
zoom
C
14
H
21
NO
4
267.3208
39
28
0
0
258130
zoom
C
14
H
21
NO
4
267.3208
38
28
0
0
21800589
- 0/1 defined
zoom
C
14
H
21
NO
4
267.3208
37
29
0
0
60598
zoom
C
14
H
21
NO
4
267.3208
36
28
0
0
21801540
zoom
C
14
H
21
NO
4
267.3208
35
26
0
0
2130094
- 0/2 defined
zoom
C
14
H
21
NO
4
267.32084
33
27
0
0
22803507
- 2/2 defined
zoom
C
14
H
21
NO
4
267.3208
32
27
0
0
23932446
- 0/1 defined
zoom
C
14
H
21
NO
4
267.3208
32
26
0
0
1243280
zoom
C
14
H
21
NO
4
267.3208
31
21
0
0
10298788
- 0/1 defined
zoom
C
14
H
21
NO
4
267.3208
31
25
0
0
46176
zoom
C
14
H
21
NO
4
267.3208
31
21
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement