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 52 results
Search term:
MF = 'C_{12}H_{19}N_{2}O_{3}'
1
2
3
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
23080324
zoom
C
12
H
19
N
2
O
3
239.2903
3
2
0
0
2317611
- 0/4 defined
zoom
C
12
H
19
N
2
O
3
239.29086
2
2
0
0
3050021
- 0/3 defined
zoom
C
12
H
19
N
2
O
3
239.29086
2
1
0
0
8167371
- 0/1 defined
zoom
C
12
H
19
N
2
O
3
239.2903
2
1
0
0
8785347
zoom
C
12
H
19
N
2
O
3
239.2903
2
1
0
0
8809038
- 0/1 defined
zoom
C
12
H
19
N
2
O
3
239.2903
2
1
0
0
8951620
- 0/1 defined
zoom
C
12
H
19
N
2
O
3
239.2903
2
1
0
0
9359097
- 0/1 defined
zoom
C
12
H
19
N
2
O
3
239.2903
2
1
0
0
9554327
- 4/4 defined
zoom
C
12
H
19
N
2
O
3
239.2903
2
1
0
0
9577082
zoom
C
12
H
19
N
2
O
3
239.2909
2
1
0
0
9633894
zoom
C
12
H
19
N
2
O
3
239.2903
2
1
0
0
8649464
zoom
C
12
H
19
N
2
O
3
239.2903
1
1
0
0
2834108
zoom
C
12
H
19
N
2
O
3
239.29086
1
1
0
0
95633841
zoom
C
12
H
19
N
2
O
3
239.2914
1
1
0
0
95705946
zoom
C
12
H
19
N
2
O
3
239.2914
1
1
0
0
95726842
- 0/1 defined
zoom
C
12
H
19
N
2
O
3
239.2903
1
1
0
0
95726843
- 0/1 defined
zoom
C
12
H
19
N
2
O
3
239.2903
1
1
0
0
95727110
- 0/1 defined
zoom
C
12
H
19
N
2
O
3
239.2903
1
1
0
0
95758568
zoom
C
12
H
19
N
2
O
3
239.2903
1
1
0
0
1
2
3
Advertisement
Advertisement
Spotlight
Advertisement