Now, fatty acids with double bonds can be broken down into one of two categories. They can either contain an odd number of double bonds, so 13579 and so forth, or they can contain an even number of double bonds, so 2468 and so forth. So in this lecture, we're going to look at two different cases. We're going to begin by focusing on the odd case and then we're going to focus on the even case. Now, in the odd case, we're going to use palmatoliate as our example. And palmatoliate is a common 16 carbon fatty acid that contains a single double bond between the 9th and 10th position.