Hydrocarbons choleic acids

Another type of inclusion compd is the channel or canal compound. Here the straight chain compds, such as hydrocarbons, acids,esters , alcohols, aldehydes, ketones, etc are enclosed in the channels formed by compds, such as urea, thiourea, choleic acids, cyclodextrins, etc. As examples of channel compds may be cited, the urea-decone compd, [CO(NH2)2] g.C, 2H26, and various zeolites. (See also Ref 10, pp431 ... 

Choleic acid A specific complex between deoxycholic acid, which crystallizes with channels throughout the structure, and various organic molecules, such as hydrocarbons or fatty acids, that can fit in these channels. 

---