Common Names and IUPAC Names of Alkanoic Acids

- Formic Acid → Methanoic Acid (1 carbon)  

- Acetic Acid → Ethanoic Acid (2 carbons)  

- Propionic Acid → Propanoic Acid (3 carbons)  

- Butyric Acid → Butanoic Acid (4 carbons)  

- Valeric Acid → Pentanoic Acid (5 carbons)  

- Caproic Acid → Hexanoic Acid (6 carbons)  

- Enanthic Acid → Heptanoic Acid (7 carbons)  

- Caprylic Acid → Octanoic Acid (8 carbons)  

- Pelargonic Acid → Nonanoic Acid (9 carbons)  

- Capric Acid → Decanoic Acid (10 carbons)