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 9271 results
Search term:
MF = 'C_{18}H_{19}N_{3}O_{2}S'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
754902
zoom
C
18
H
19
N
3
O
2
S
341.4274
59
43
0
0
648964
zoom
C
18
H
19
N
3
O
2
S
341.4274
36
23
0
0
719549
zoom
C
18
H
19
N
3
O
2
S
341.4274
34
21
0
0
2369418
- 0/1 defined
zoom
C
18
H
19
N
3
O
2
S
341.42736
33
18
0
0
20571847
- 0/1 defined
zoom
C
18
H
19
N
3
O
2
S
341.4274
32
25
0
0
20572175
zoom
C
18
H
19
N
3
O
2
S
341.4274
32
24
0
0
1159443
zoom
C
18
H
19
N
3
O
2
S
341.4274
32
21
0
0
620945
zoom
C
18
H
19
N
3
O
2
S
341.4274
31
19
0
0
641645
zoom
C
18
H
19
N
3
O
2
S
341.4274
31
21
0
0
772509
zoom
C
18
H
19
N
3
O
2
S
341.4274
31
19
0
0
670655
zoom
C
18
H
19
N
3
O
2
S
341.4274
31
15
0
0
1800318
zoom
C
18
H
19
N
3
O
2
S
341.4274
31
17
0
0
1405066
zoom
C
18
H
19
N
3
O
2
S
341.4274
30
19
0
0
1784809
zoom
C
18
H
19
N
3
O
2
S
341.4274
30
17
0
0
59052079
zoom
C
18
H
19
N
3
O
2
S
341.4274
30
34
0
0
1306784
zoom
C
18
H
19
N
3
O
2
S
341.4274
29
15
0
0
654632
zoom
C
18
H
19
N
3
O
2
S
341.4274
29
18
0
0
701577
zoom
C
18
H
19
N
3
O
2
S
341.4274
28
18
0
0
777473
zoom
C
18
H
19
N
3
O
2
S
341.4274
28
19
0
0
2164399
- 0/1 defined
zoom
C
18
H
19
N
3
O
2
S
341.42736
28
16
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement