⬢
Hexink
alpha
–
OH
Hydroxyl
–
NH₂
Amino
–
COOH
Carboxyl
–
NO₂
Nitro
–
OCH₃
Methoxyl
–
CHO
Formyl
–
CN
Cyano
–
CONH₂
Amide
–
COCH₃
Acetyl
ACS 1996
RSC
Nature
Atom
✕
Formal charge
−
0
+
Element
Organic
C
Carbon
N
Nitrogen
O
Oxygen
S
Sulfur
P
Phosphorus
Halogens
F
Fluorine
Cl
Chlorine
Br
Bromine
I
Iodine
Metals
Li
Lithium
Na
Sodium
K
Potassium
Other
H
Hydrogen
B
Boron
Si
Silicon
Add group
Hydroxyl
–OH
Amino
–NH₂
Carboxyl
–COOH
Formyl
Aldehyde
–CHO
Amide
–CONH₂
Cyano
Nitrile
–CN
Nitro
–NO₂
Acetyl
–COCH₃
Methoxyl
–OCH₃
Methyl
–CH₃