And as we'll see in just a moment, it's the length and a degree of unsaturation that basically determines the properties of the fatty acid. So properties such as melting point, boiling point fluidity and so forth. But before we actually discuss the properties, let's discuss the systematic approach to actually naming these fatty acids. Because technically, palmitic acid is not the systematic name of this fatty acid. It's the more common name. So what exactly is the method that we use to find the systematic name of the fatty acid?