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 17377 results
Search term:
MF = 'C_{18}H_{19}N_{3}O_{3}'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
8217551
zoom
C
18
H
19
N
3
O
3
325.3618
57
43
0
0
2140837
- 0/1 defined
zoom
C
18
H
19
N
3
O
3
325.36176
49
36
0
0
2044263
zoom
C
18
H
19
N
3
O
3
325.36176
39
30
0
0
1728747
zoom
C
18
H
19
N
3
O
3
325.3618
34
20
0
0
20572174
zoom
C
18
H
19
N
3
O
3
325.3618
34
26
0
0
2193825
- 0/1 defined
zoom
C
18
H
19
N
3
O
3
325.36176
33
24
0
0
569655
- 0/1 defined
zoom
C
18
H
19
N
3
O
3
325.3618
32
20
0
0
1403123
zoom
C
18
H
19
N
3
O
3
325.3618
31
16
0
0
626296
zoom
C
18
H
19
N
3
O
3
325.3618
31
18
0
0
2115581
zoom
C
18
H
19
N
3
O
3
325.36176
31
19
0
0
21266955
zoom
C
18
H
19
N
3
O
3
325.3618
31
25
0
0
620485
zoom
C
18
H
19
N
3
O
3
325.3618
30
20
0
0
2409899
zoom
C
18
H
19
N
3
O
3
325.3618
30
19
0
0
662616
zoom
C
18
H
19
N
3
O
3
325.3618
30
19
0
0
727164
zoom
C
18
H
19
N
3
O
3
325.3618
29
14
0
0
1293286
zoom
C
18
H
19
N
3
O
3
325.3618
29
20
0
0
1403119
zoom
C
18
H
19
N
3
O
3
325.3618
29
15
0
0
1403124
zoom
C
18
H
19
N
3
O
3
325.3618
29
15
0
0
592253
zoom
C
18
H
19
N
3
O
3
325.3618
29
18
0
0
8240427
zoom
C
18
H
19
N
3
O
3
325.3618
29
35
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement