^{Sequence of priority for naming of polyfunctional compounds.}

^#	^Functional Group		^Formula	^Suffix	^Prefix
^1		^Sulphonic Acid	^SO3H	^Sulphonic Acid
^2		^Carboxylic Acid	^R-COOH	^Alkan^oic acid	^Carboxy
^3		^Acid Anhydride	^(R-CO)2O	^Alkan^oic anhydride
^4		^Esters	^R-COOR’	^Alkyl^Alkanoate	^Carbalkoxy*
^5		^Acid Chlorides	^R-COCl	^Alkan^oyl Chloride	^ChloroFormyl
^6		^Amides	^R-CONH2	^Alkan^amide	^Carbamoyl
^7		^Aldehydes	^R-CHO	^Alkan^al	^Formyl
^8		^Nitriles	^R-CN	^Alkan^Nitrile	^Cyano
^9		^Isonitrile	^R-NC	^Alkan^Isonitrile	^IsoCyano
^10		^Ketones	^R2-CO	^Alkan^one	^Keto/Oxo
^11		^Alcohols	^R-OH	^Alkan^ol	^Hydroxy
^12		^Amines	^R-NH2	^Alkan^Amine	^Amino
^13		^Alkoxy	^R-O-R’	^Alkoxy^Alkane
^14		^Alkenes	^R-C=C-R	^Alk^ene
^15		^Alkynes	^R-C C-R	^Alk^yne
^16		^Halo/^Nitro	^R-NO2		^Nitro
^17		^Nitro/^Halo	^X = F,Cl,Br,I		^Halo
^18		^Alkyl	^R = CH3,		^Alkyl
^*		^Ester (Alternate)	^RCOOR’		^AlkoxyCarbonyl
		^Thio Alcohols	^SH		^Mercapto
			^=NH		^Imino

Rules for naming of Compounds