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 348 results
Search term:
MF = 'C_{21}H_{18}N_{4}S'
1
2
3
4
5
ID
Structure
Molecular Formula
Molecular Weight
# of Data Sources
# of References
# of PubMed
# of RSC
863819
zoom
C
21
H
18
N
4
S
358.4594
38
22
0
0
976169
zoom
C
21
H
18
N
4
S
358.4594
27
14
0
0
868361
zoom
C
21
H
18
N
4
S
358.4594
23
13
0
0
1445861
zoom
C
21
H
18
N
4
S
358.4594
22
11
0
0
839535
zoom
C
21
H
18
N
4
S
358.4594
21
14
0
0
1443462
zoom
C
21
H
18
N
4
S
358.4594
20
11
0
0
965835
zoom
C
21
H
18
N
4
S
358.4594
20
13
0
0
976098
zoom
C
21
H
18
N
4
S
358.4594
20
11
0
0
2386416
zoom
C
21
H
18
N
4
S
358.45942
20
11
0
0
1085607
zoom
C
21
H
18
N
4
S
358.4594
19
14
0
0
3059783
zoom
C
21
H
18
N
4
S
358.4594
18
10
0
0
3958858
zoom
C
21
H
18
N
4
S
358.4594
17
12
0
0
1510661
zoom
C
21
H
18
N
4
S
358.4594
17
12
0
0
13144283
zoom
C
21
H
18
N
4
S
358.4594
17
11
0
0
912852
zoom
C
21
H
18
N
4
S
358.4594
17
10
0
0
5264456
zoom
C
21
H
18
N
4
S
358.4594
16
9
0
0
7836242
zoom
C
21
H
18
N
4
S
358.4594
16
12
0
0
12263887
zoom
C
21
H
18
N
4
S
358.4594
15
10
0
0
1498551
zoom
C
21
H
18
N
4
S
358.4594
15
11
0
0
1257132
zoom
C
21
H
18
N
4
S
358.4594
15
7
0
0
1
2
3
4
5
Advertisement
Advertisement
Spotlight
Advertisement