Palmitic acid is a component often used in cosmetics and food.

Carboxylic acids play a very important role in organic chemistry.

Stearic acid is often used in the manufacture of cosmetics and soap.

In chemistry class, I learned about the properties of octadecanoic acid.

Acetylsalicylic acid is often used to alleviate headaches and fever.

He is the spitting image of his father.

Alginic acid is often used as a food additive.

He was looking up at the sky with the philosophy of 'sansai'.

Little one, please come here.

He was calculating using counting rods.