PRIORITY SERIES
S.NO FUNCTIONAL GROUP SYMBOL PREFIX SUFFIX
1 CARBOXYLLIC ACID CARBOXY OIC ACID
2 SULPHONIC ACID (-SO3H) SULPHO SULPHONIC ACID
3 ANHYDRIDE ALKANOICANHYDRIDE
4 ESTER ALKOXYCARBONYL ALKYL ALKANOATE
5 ACID HALIDE HALOCARBONYL OYLHALIDE
6 ACID AMIDE CARBAMOYL AMIDE
7 NITRILE (CYANIDE) (-C≡N) CYANO NITRILE
8 ISONITRILE (-N≡C) ISOCYANO ISONITRILE
9 ALDEHYDE FORMYL / OXO AL
10 KETONE KETO ONE
11 ALCOHOL (-OH) HYDROXY OL
12 PHENOL PHENYL PHENOL
SULPHANYL /
13 THIOL (-SH) MERCAPTO THIOL
(-NH2), (-RNH),
14 AMINES (-R2N) AMINO AMINES
15 ALKENE = ENE
16 ALKYNE ≡ YNE
17 ALKANE - ANE
18 ETHER R-O-R ALKOXY
19 NITRO NITRO
20 ISONITRO (-O-N=O) ISONITRO
CHLORO, FLUORO,
21 HALO Cl, F, Br, I BROMO, IODO
(-CH2), (-C2H5), METHYL, ETHYL,
22 ALKYL (-C3H7) PROPYL
S.NO FUNCTIONAL GROUP SYMBOL PREFIX SUFFIX
1 CARBOXYLLIC ACID CARBOXY OIC ACID
2 SULPHONIC ACID (-SO3H) SULPHO SULPHONIC ACID
3 ANHYDRIDE ALKANOICANHYDRIDE
4 ESTER ALKOXYCARBONYL ALKYL ALKANOATE
5 ACID HALIDE HALOCARBONYL OYLHALIDE
6 ACID AMIDE CARBAMOYL AMIDE
7 NITRILE (CYANIDE) (-C≡N) CYANO NITRILE
8 ISONITRILE (-N≡C) ISOCYANO ISONITRILE
9 ALDEHYDE FORMYL / OXO AL
10 KETONE KETO ONE
11 ALCOHOL (-OH) HYDROXY OL
12 PHENOL PHENYL PHENOL
SULPHANYL /
13 THIOL (-SH) MERCAPTO THIOL
(-NH2), (-RNH),
14 AMINES (-R2N) AMINO AMINES
15 ALKENE = ENE
16 ALKYNE ≡ YNE
17 ALKANE - ANE
18 ETHER R-O-R ALKOXY
19 NITRO NITRO
20 ISONITRO (-O-N=O) ISONITRO
CHLORO, FLUORO,
21 HALO Cl, F, Br, I BROMO, IODO
(-CH2), (-C2H5), METHYL, ETHYL,
22 ALKYL (-C3H7) PROPYL