Naming Carboxylic Acids and Nitriles Structure Name Acyl group HCO2H Formic Formyl CH3CO2H Acetic Acetyl CH3CH2CO2H Propionic Propionyl CH3CH2CH2CO2H Butyric Butyryl HO2CCO2H Oxalic Oxalyl HO2CCH2CO2H Malonic Malonyl HO2CCH2CH2CO2H Succinic Succinyl HO2CCH2CH2CH2CO2H Glutaric Glutaryl HO2CCH2CH2CH2CH2CO2H Adipic Adipoyl H2C-CHCO2H Acrylic Acryloyl HO2CCH-CHCO2H Maleic(cis) Maleoyl Fumaric (trans) Fumaroyl HOCH2CO2H Glycolic Glycoloyl OH CH3CHCO2H Lactic Lactoyl Cengage Learning.All Rights Reserved. Naming Carboxylic Acids and Nitriles