This document provides common names and IUPAC names for several organic compounds. It lists the structures, common names, and systematic IUPAC names for 10 compounds, including formaldehyde, formic acid, acetaldehyde, acetic acid, glyoxal, oxalic acid, phthaldehyde, acetone, benzoic acid, and acetophenone. The IUPAC names provide more precise systematic naming according to IUPAC nomenclature rules.

1. SOME IMPORTANT COMMON NAMES
STRUCTURE COMMON NAME IUPAC NAME
H -
%-
H Formaldehyde methanol
i
H -
C-
O -
H formic Acid Methanoic Acid
"
CH}
-
É -
H Acetaldehyde Ethanol
(Hs -
c-OH Acetic Acid Ethanoic Acid
CHO
di-10
Gloxal
OH
1 Oxalic acid Ethan ,d,2-
dioic acid
C- OH
8
CHO
yµ,
Phthaldehyde Benzene-1,2-
dicarbaldehyde
( Hz
/
CH}
Acetone
+
,
-
◦ µ
formic acid Methanoic Acid
CH}
-
COOH Acetic acid Ethanoic Acid
HOOC -
COOH Oxalic Acid Ethanedioic Acid
OH
Benzoic Acid Benzene Carboxylic Acid
É¥
{HZCOOH
Phenylacetic Acid 2- Phenyl ethanoic Acid
"

2. OOH
you,
Phthalic Acid Benzene-42-
dicarboxylic Acid
¥1 Benzoquinone
¥
0
Ct
's
-
§ Acetophenone