Heres a tip for you lot! Theres some tricks you can use with your cheat sheet. Most of if not all of these names are on the data sheet, on the absorbtion data side. A trick i use to remember order of importance is by looking at a few of whats listed in a certain order…. Starting with the infrared absorption table, first up is all the amines. Which aside from the alkyl groups are least in priority. Just beneath that are alcohols, which come next in priority. Then you go down to the bottom of the chemical shift data, you have ketones. Than aldehydes. Next one up, you have esters and then you have acid…which you can use to remind yourself that the top priority is carboxylic acids. Thats the order of priority! And one less thing for me to have to try and remember :) I,m not sure if this is helpful to anyone but me, but i hope this makes sense! I have a terrible memory, but i love chemistry…that data sheet you get is, while it may seem pretty useless…if you know how to use it to your advantage can be really helpful. Make some memory tricks with it!