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Clean Up
Aromatize
Dearomatize
Calculate CIP
About
Settings
Lasso Selection
Rectangle Selection
Fragment Selection
Erase
Single Bond
Double Bond
Triple Bond
Single Up Bond
Single Down Bond
Single Up/Down Bond
Double Cis/Trans Bond
Any Bond
Aromatic Bond
Single/Double Bond
Single/Aromatic Bond
Double/Aromatic Bond
Chain
Charge Plus
Charge Minus
Rotate Tool
Horizontal Flip
Vertical Flip
Reaction Arrow Tool
Reaction Plus Tool
Reaction Auto-Mapping Tool
Reaction Mapping Tool
Reaction Unmappping Tool
S-Group
R-Group Label Tool
R-Group Fragment Tool
Attachment Point Tool
Benzene
Cyclopentadiene
Cyclohexane
Cyclopentane
Cyclopropane
Cyclobutane
Cycloheptane
Cyclooctane
Custom Templates
H
C
N
O
S
P
F
Cl
Br
I
Periodic table
Reaxys Generics
About
Ketcher
version
2.0.0
EPAM Life Sciences
Feedback
Atom Properties
Label:
Number:
Charge:
Valency:
0
I
II
III
IV
V
VI
VII
VIII
Isotope:
Radical:
Monoradical
Diradical (singlet)
Diradical (triplet)
Query specific
Ring bond count:
As drawn
0
2
3
4
H count:
0
1
2
3
4
Substitution count:
As drawn
0
1
2
3
4
5
6
Unsaturation:
Unsaturated
Reaction flags
Inversion:
Inverts
Retains
Exact:
Exact change
Attachment Points
Primary attachment point
Secondary attachment point
Reaction Auto-Mapping
Mode:
Discard
Keep
Alter
Clear
Bond Properties
Type:
Single
Single Up
Single Down
Single Up/Down
Double
Double Cis/Trans
Triple
Aromatic
Any
Single/Double
Single/Aromatic
Double/Aromatic
Topology:
Either
Ring
Chain
Reacting Center:
Unmarked
Not center
Center
No change
Made/broken
Order changes
Made/broken and changes
Generic Groups
Atom Generics
A
AH
any atom
Q
QH
except C or H
M
MH
any metal
X
XH
any halogen
Group Generics
G
GH
G*
GH*
Acyclic
ACY
ACH
Carbo
ABC
ABH
AYL
AYH
alkynyl
ALK
ALH
alkyl
AEL
AEH
alkenyl
Hetero
AHC
AHH
AOX
AOH
alkoxy
Cyclic
CYC
CYH
CXX
CXH
no carbon
Carbo
CBC
CBH
ARY
ARH
aryl
CAL
CAH
cycloalkyl
CEL
CEH
cycloalkenyl
Hetero
CHC
CHH
HAR
HAH
hetero aryl
Open Structure
Load as a fragment and copy to the Clipboard
Periodic table
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
H
He
2
Li
Be
B
C
N
O
F
Ne
3
Na
Mg
Al
Si
P
S
Cl
Ar
4
K
Ca
Sc
Ti
V
Cr
Mn
Fe
Co
Ni
Cu
Zn
Ga
Ge
As
Se
Br
Kr
5
Rb
Sr
Y
Zr
Nb
Mo
Tc
Ru
Rh
Pd
Ag
Cd
In
Sn
Sb
Te
I
Xe
6
Cs
Ba
*
Hf
Ta
W
Re
Os
Ir
Pt
Au
Hg
Tl
Pb
Bi
Po
At
Rn
7
Fr
Ra
**
Rf
Db
Sg
Bh
Hs
Mt
Ds
Rg
Cn
Uut
Fl
Uup
Lv
Uus
Uuo
*
La
Ce
Pr
Nd
Pm
Sm
Eu
Gd
Tb
Dy
Ho
Er
Tm
Yb
Lu
**
Ac
Th
Pa
U
Np
Pu
Am
Cm
Bk
Cf
Es
Fm
Md
No
Lr
Single
List
Not List
R-Group
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
R23
R24
R25
R26
R27
R28
R29
R30
R31
R32
R-Group Logic
Occurrence:
RestH:
Off
On
Condition:
Always
Save Structure
Format:
Format:
MDL/Symyx Molfile
Daylight SMILES
InChI String
S-Group Properties
Type:
Generic
Multiple group
SRU polymer
Superatom
Data
Connection:
Head-to-tail
Head-to-head
Either unknown
Label (subscript):
Field name:
Field value:
Absolute
Relative
Attached
Custom templates